AU753964B2 - A mortise lock - Google Patents
A mortise lock Download PDFInfo
- Publication number
- AU753964B2 AU753964B2 AU53643/00A AU5364300A AU753964B2 AU 753964 B2 AU753964 B2 AU 753964B2 AU 53643/00 A AU53643/00 A AU 53643/00A AU 5364300 A AU5364300 A AU 5364300A AU 753964 B2 AU753964 B2 AU 753964B2
- Authority
- AU
- Australia
- Prior art keywords
- tongue
- lock
- movement
- actuator
- actuator members
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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- Lock And Its Accessories (AREA)
Description
1 A MORTISE LOCK Technical Field The present invention relates to locks and more particularly, but not exclusively, to mortise locks.
Background of the Invention Some mortise locks have been provided with a tongue actuator that can be operated by means of a handle on opposite sides of the door. These locks in some instances have also been provided with a mechanism which an installer of the lock can manipulate to permit operation of both handles, or alternatively render inoperative one or io both of the handles. These mechanisms are generally inconvenient to manipulate.
A further disadvantage of known lock mechanisms is the number of parts extending between an associated lock cylinder and the deadlock mechanism. These constructions are generally complex and add to the cost of the mortise lock.
Mortise locks include two types of locks, that is, a lock when the door is moved to the closed position, automatically disables the deadlock mechanism so that you can reenter, or locks not having such a feature. That is when the door is moved to the closed position the lock may automatically deadlock. Providing these two types of locks is expensive from the viewpoint of manufacture and stock availability.
Object of the Invention It is the object of the present invention to overcome or substantially ameliorate at least one of the above disadvantages.
0 .0 [I:\daylib\libtt]021 12.doc:lam:hxa:KEH Summary of the Invention There is disclosed herein a lock for a door mounted in a door jam, said lock having: a hollow body; a lock tongue mounted in the body for substantially linear movement in a direction between a retracted position at which the tongue is at least substantially located within the body, and an extended position at which the tongue projects from the body to engage the doorjam; a tongue actuator mounted in the body and including a first actuator member for angular movement about an axis substantially normal to the direction of movement of the tongue, the first actuator being operable to move the tongue from the extended position to the retracted position, and a second actuator member mounted in the body for angular movement about said axis to move the tongue from the extended position to the retracted position, said first actuator member being operable from a first side of a said body and therefore a first side of said door, and said second actuator member being operable from an opposite side of said body and therefore an opposite side of said door; and a disabling assembly selectively operable to prevent actuation of both actuator members, or prevent actuator of a selected one of said actuator members, with said disabling assembly including a hand determining member rotatable about an axis, generally transverse of the general direction of movement of said tongue, between a first, 1 second and third position, said hand determining member preventing movement of both said actuator members when in said first position and preventing movement of only a .i selected one of said actuator members when in said second or third position.
So* [I:\daylib\libtt]021 12.doc:lam:hxa:KEH Brief Description of the Drawings A preferred form of the present invention will now be described by way of example with reference to the accompanying drawings wherein: Figure 1 is a schematic perspective view of a lock; Figure 2 is a schematic side elevation of the lock of Figure 1; Figure 3 is a schematic side elevation of the lock of Figure 1 partly key actuated; Figure 4 is a further schematic side elevation of the lock of Figure 1 and a further stage of actuation; Figure 5 is a schematic side elevation of the deadlock portion of the lock of 1o Figure 1; Figure 6 is a schematic perspective view of a disabling member employed in the lock of Figure 1; Figure 7 is a schematic sectioned perspective view of the disabling member of Figure 6; Figure 8 is a schematic perspective view of the portions of the lock illustrated in Figure Figure 9 is a further schematic view of the lock arrangement as illustrated in- Figure 8; S.Figure 10 is an alternative view of the arrangement shown in Figure 9; Figure 11 is a number of schematic illustrations of a disabling barrel employed in the disabling member of Figure 6; Figure 12 is a schematic side elevation of a modification of the lock of Figures 1 *toil; Figure 13 is a schematic side elevation of portions of the lock of Figure 12; Figure 14 is a schematic side elevation of the lock of Figure 12 in a first operative position; Figure 15 is a schematic side elevation of the lock of Figure 14 in a further operative position; and [I:\daylib\Iibtt]021 12.doc:Iam:hxa:KEH Figure 16 is a schematic perspective view of two portions of the lock of Figure 12.
Detailed Description of the Preferred Embodiment In the accompanying drawings there is schematically depicted a mortise lock The lock 10 includes a hollow body 11 having a front wall 12 through which a lock tongue 13 may project. The lock tongue 13 is slidably guided for linear movement between an extended position (as shown in Figure at which the tongue 13 engages a door jam or striker member, and a retracted position at least substantially contained within the body 11 (as shown in Figure 4).
The tongue 13 is moveable from the extended position to the retracted position by operation of lock cylinders 14 from either side of the door. At the option of the person installing the lock 10, the tongue 13 may also be handle operated. For example, a handle may be provided on both sides of the door, or alternatively on only one side. The ":handle/s have a square shaft which engage an actuator 15. The actuator 15 includes two actuator members 16 and 17 which are angularly moveable about an axis generally transverse of the general direction of movement of the tongue 13. Each of the actuator members 16 and 17 is operatively associated with a respective one of the handles. More particularly each actuator member 16 and 17 has a respective arm 18 or 19. The arms 18 and 19 each extend from a respective hub 20 providing an aperture 21, of square transverse cross section, to engage the shaft extending from the associated handle. The arms 18 and 19 when moved angularly toward the rear wall 22 engage a flange 23 on the :rear of the tongue stem 24, in order to retract the tongue 13. Each actuator member 16 and 17 has a projection 25 engaged by a slide 26. The slide 26 is urged by a compressed spring 27 to move the actuator members 16 and 17 to a position permitting the tongue 13 to move to its extended position as shown in Figure 1.
Fixed to each arm 18 and 19 is a flange 28 which is selectively engaged with a disabling assembly 29. The assembly 29 is operable to permit movement of both flanges 28 or alternatively selectively engage one or both of the flanges 28 to prevent movement of the arms 18 and 19 to retract the tongue 13.
The assembly 29 includes a slide 30 guided for linear movement in a direction generally normal to the direction of movement of the tongue 13. The slide 13 is moveable between a first position (as shown in Figure 1) at which the flanges 28 would not be engaged. Accordingly, both actuator members 16 and 17 can be operated to retract the tongue 13. This first position of the assembly 29 is also illustrated in Figures 4 and 8.
[I:\DAYLIB\LIBTT]02112.doc:am The second position of the assembly 29 is illustrated in Figures 2, 3, 5 and 9. In the second position of the assembly 29, the assembly 29 engages one or both of the flanges 28 to prevent movement thereof and therefore essentially disable one or both of the handles. By engaging one or both of the flanges 28, a selected one or both of the arms 18 and 19 is effectively rendered inoperative and unable to retract the tongue 13.
The slide 30 has a pair of downwardly projecting flanges 31 which rotatably support a handing cylinder 32. The cylinder 32 is rotatable about an axis generally transverse of the direction of movement of the tongue 30, as well as transverse of the direction of movement of the slide 30. The cylinder 32 has a pair of slots 33 and 34, with the slot 33 being selectively positionable on the path along which the flange 28 of the member 16 moves to thereby permit angular movement thereof, while the slot 34 is positionable on the path of the flange 28 of the member 17 to permit angular movement thereof. Accordingly, the cylinder 32 has effectively three positions. In a first position neither of the slots 33 and 34 is aligned with its associated path as discussed above. In 15 this position the cylinder 32 will engage both flanges 28 to prevent movement of the handles. In a second position the slot 33 is aligned with its associated flange 28 and therefore only permits operation of the handle associated with the actuator member 16.
However, if the slot 34 is aligned with the path of its associated flange 28, then only the •actuator member 17 is permitted to move and therefore the handle associated therewith is operative. When one of the flanges 28 is aligned with its associated slot 33/34, the other flange 28 engages the cylinder so that the handle associated therewith is disabled.
The end face of the cylinder 32 is provided with a recess 41 which can be engaged by a screwdriver or other item so that the "hand" of the lock 10 can be determined at the time of installation. That is, whether both handles are inoperable, or only one is selected for operation.
Mounted in the slide 30 is a pawl 35 urged into engagement with the cylinder 32.
The pawl 35 has a barb 36 which is urged into engagement with a selected one of the recesses 37 (to define the positions at which the slots 34 and 35 are aligned with their respective flanges 28). The pawl 35 is urged into contact with the cylinder 32 by means of a spring not illustrated. Mounted in a passage 40 of the slide 30, is a ball 38, biased outwardly by means of a spring 39. The ball 38 selectively engages one of a pair of recesses formed in an outer cover (not illustrated) of the housing 11 to define the two operative positions of the slide Each of the lock cylinders 14 is provided with a cam member 42 which is operated by means of a key to retract the tongue 13. By use of a key each cam member [I:\DAYLIB\LBTT]02112.doc:am 6 42 is rotatable to engage a flange 43 on the stem 24. Each cam member 42 passes along an arcuate path intersecting with a deadlock member 44. The deadlock member 44 has a pawl 45 which is engageable with a rear face 46 of the tongue 13. The pawl 45 maintains the tongue 13 in the extended position. The tongue 13 is only retracted when the pawl is moved to a position spaced from the tongue 13. The pawl 45 is moved to this spaced position by engagement of one of the cam members 42 with the arm 47 of the member 42.
As best seen in Figure 3, the cam member 42 is engaged with the arm 47 to pivot the deadlock member 44 to a position at which the pawl 45 is spaced from the tongue 13.
Accordingly, the tongue 13 can be retracted by engagement with the door jam (or striker) as well as by operation of a selected one of the handles and associated actuator members 16 and 17. The member 44 includes a hub 48 pivotally mounted on a pin 49. As seen in Figure 4, the cam member 42 has been moved to a position at which it has retracted the tongue 13. The arm 47 is urged by spring 60 to pivot in the direction of the arrow 61.
To enable the tongue 13 to perform a latching function, that is, retracted when engaged by a door jam or striker member, there is provided a deadlock pin 50. The pin is slidably mounted in the body 10 for linear movement generally parallel to the movement of the tongue 13. The pin 50 has a cam surface 51 which is engageable with a cam surface 52 adjacent the pawl The pin 50 is moveable between an extended position as shown in Figures 1 and S 20 3. In this position the cam surface 51 is engaged with the cam surface 52 to pivot the pawl 45 to a position not engaged with the tongue 13. When the pin 50 is moved to a retracted position, as shown in Figure 2, the cam surface 51 is moved toward the rear wall 22 so that the pawl 45 can pivot to a position engaged with the tongue 13. The pin 50 is .i urged by means of a spring (not illustrated) to move to the extended position holding the pawl 45 from its position of engagement with the tongue 13.
S. redTypically, the spring urging the pin 50 to the extended position would be received within a socket 53.
A spring would be received within the cavity 54 of the stem 24, with the spring engageable with a cover plate (not shown) so as to urge the tongue 13 to the extended position.
Each actuator member 16 and 17 is provided with a projection 55. The projections 55 are engageable with an associated projection 56 on the deadlock member 44. When either handle is operated to retract the tongue 13, the actuator member 16 or 17 being moved has its projection 55 engage the projection 56 to cause pivoting of the member 44. Pivoting of the member 44 removes the pawl 45 from engagement with the [I:\daylib\libtt]02112.doc:lam:bxa:KEH 7 tongue 13 to allow movement of the tongue 13 in accordance with operation of the handle.
The disabling assembly 29 further includes a "kick out" member 57. The member 57 is moveable in a direction generally transverse of the direction of movement s of the assembly 29 between a first position as illustrated in Figure 6, and a second position as illustrated in Figure 7. When in the position illustrated in Figure 6 the ramp surface 58 of the stem 54 engages the member 57 to move the assembly 29 to a position at which it does not engage the actuator members 16 and 17. This occurs when the door is moved to the closed position and the tongue is caused to retract by engagement with a lo door jam or striker member. Accordingly, the door may then be re-opened. When the member 57 is in the position shown in Figure 7, it is not engaged by the ramp surface 58 and therefore when the door is moved to the closed position and the tongue retracted by engagement with the jam or striker member, the disabling assembly 29 is not moved.
The assembly 29 is also moved to the second portion thereof when an unhindered arm 18 or 19 is moved to retract the tongue 13.
In Figures 12 to 16 there is schematically depicted a modification of the lock of o Figures 1 to 11. In the previous embodiment the deadlock member 42 has a pawl 45 and an arm 47. In the embodiment of Figures 12 to 16 the deadlock member 44 is replaced oo. with a pawl member 63 and an arm member 64. The pawl member 63 is provided with a shaft opening 65 while the arm member 64 has a shaft opening 66, with the pin 49 passing there through so that the pawl member 63 and arm member 64 are pivotally mounted thereon.
The pawl member 63 includes a recess 65 that engages with the rear face 46 of the tongue 13. The pawl member 63 further includes a projection 66 which corresponds to the projection 56 of the previous embodiment, which projection 66 is engaged by the projections 55 as previously discussed.
The arm member 64 has an abutment 67 which engages the pawl member 63 when the arm member 64 is pivoted by the cam member 42, to move the pawl member 63 to a position releasing the tongue 13.
In this embodiment spring 68 is illustrated, which spring 68 urges the pin 50 to the extended position. Also illustrated is a spring 69 that urges the tongue 13 to the extended position.
In operation of this preferred embodiment pivoting movement of the cam member 42 causes the arm member 64 to move the pawl member 63 to a position permitting retraction of the tongue 13. In addition, operation of either actuator 16 or 17 [I:\DAYLB\LBTT]021 12.doc:Iam 8 causes the associated projection 55 to engage the pawl member 63 to again pivot to a position permitting retraction of the tongue 13.
In the first embodiment the lock 10 has a deadlock portion provided by the deadlock member 44. In the second embodiment the deadlock portion is provided by a combination of the pawl member 63 and arm member 64.
o
S
[I:\DAYLIB\LBTT]021I2.doc:1am
Claims (24)
1. A lock for a door mounted in a door jam, said lock having: a hollow body; a lock tongue mounted in the body for substantially linear movement in a direction between a retracted position at which the tongue is at least substantially located within the body, and an extended position at which the tongue projects from the body to engage the door jam; a tongue actuator mounted in the body and including a first actuator member for angular movement about an axis substantially normal to the direction of movement of the tongue, the first actuator being operable to move the tongue from the extended position to the retracted position, and a second actuator member mounted in the body for angular movement about said axis to move the tongue from the extended position to the retracted position, said first actuator member being operable from a first side of a said body and therefore a first side of said door, and said second actuator member being operable from an opposite side of said body and therefore an opposite side of said door; and a disabling assembly selectively operable to prevent actuation of both actuator members, or prevent actuator of a selected one of said actuator members, with said disabling assembly including a hand determining member rotatable about an axis, generally transverse of the general direction of movement of said tongue, between a first, 20 second and third position, said hand determining member preventing movement of both said actuator members when in said first position and preventing movement of only a selected one of said actuator members when in said second or third position.
2. The lock of claim 1 further including a deadlock portion moveably mounted in the body for movement between a first position at which the deadlock portion engages the tongue to prevent movement thereof from the extended position to the retracted position, and a second position at which the tongue is permitted to move from the extended position to the retracted position, the deadlock portion being pivotally o mounted in the body for angular movement between the first and second positions thereof S about an axis generally transverse to the direction of movement of the tongue, the deadlock portion including an arm extending generally from said axis and being adapted to be engaged by a lock cylinder which causes movement of the deadlock portion between the positions thereof, and a pawl extending from said first arm and adapted to engage the tongue to retain the tongue in the extended position or to permit said tongue to R Az, move. [I:\daylib\libtt]02112.doc:lam:hxa:KEH
3. The lock of claim 2 wherein the arm and the pawl are provided by a single deadlock member.
4. The lock of claim 2 wherein the deadlock portion is provided by an arm member and a pawl member, each pivotally mounted for movement about said axis, with said arm member being adapted to be engaged by a cylinder lock to cause pivoting movement of the pawl member, and the pawl member being engaged by the tongue actuator to move the pawl member to permit movement of the tongue from the extended position to the retracted position.
The lock of any one of claims 1 to 4 wherein the disabling assembly 0to includes: a disabling member movable in a direction generally normal to the direction of movement of the tongue, with positions of said disabling member determining whether any of the actuator members are permitted to move to retract the tongue.
6. The lock of claim 5 wherein said disabling member is movable between a first position freeing both actuator members for movement to retract tongue, and a second position preventing movement of a selected one of the actuator members.
7. The lock of claim 6 wherein said disabling member includes a handing member to engage the one or both of the actuator members, the handing member being movable to determine which actuator members are to be free to move to retract the S* 20 tongue.
8. The lock of claim 7 wherein the handing member is moved angularly to determine which actuator members are free to move to retract the tongue. oo0 00
9. The lock of claim 8 wherein said handing member includes a slot operatively associated with each actuated member, with the position of the slots determining which of the actuator members are free for movement to retract the tongue, with the handing member being angularly moved about an axis generally normal to the S.direction of movement of the tongue.
The lock of any one of claims 6 to 9 wherein the disabling member is a S .slide, and said lock further includes a lock cylinder to cause movement of the slide.
11. The lock of claim 9, or the lock of claim 10 when appended to claim 9, wherein each actuator member has fixed to it a flange, with the flanges being aligned with the handing member so that the handing member may prevent movement of the actuator members, each actuating member being free for movement when a respective one of the R slots is positioned to prevent movement of an associated one of the actuator members. [I:\daylib\libtt]02112.doc:lam:hxa:KEH 11
12. The lock of claim 1 further including a lock cylinder, and a deadlock portion moveably mounted in the body for movement between a first position at which the deadlock portion engages the tongue to prevent movement thereof from the extended position to the retracted position, and a second position at which the tongue is permitted to move from the extended position to the retracted position, the deadlock portion being pivotally mounted in the body for angular movement between the first and second positions thereof about an axis generally transverse to the direction of movement of the tongue, the deadlock portion including an arm extending generally from said axis and being adapted to be engaged by said lock cylinder which causes movement of the deadlock portion between the positions thereof, and a pawl extending from said first arm and adapted to engage the tongue to retain the tongue in the extended position or to permit said tongue to move; wherein said disabling assembly includes a disabling member moved by said lock cylinder in a direction generally normal to the direction of the movement of the tongue, with portions of said disabling member determining whether any of the actuator members are permitted to move to retract the tongue.
13. The lock of claim 12 wherein said cylinder lock is operable to engage said disabling member to free the actuator members for movement to retract the tongue, and then to engage said arm to locate said deadlock portion in said second position S* 20 thereof.
14. The lock of claim 13 wherein said cylinder lock after freeing said S: actuator members for movement to retract the tongue, and locating said deadlock portion V. in the second position thereof is further operable to retract the tongue.
15. The lock of claim 12, 13 or 14 wherein the disabling assembly includes: a disabling member movable in a direction generally normal to the direction of movement of the tongue, with positions of said disabling member determining whether any of the actuator members are permitted to move to retract the tongue, said disabling member •being moved by said lock tongue.
The lock of claim 15 wherein said disabling member is movable between a first position freeing both actuator members for movement to retract tongue, and a second position preventing movement of a selected one of the actuator members.
17. The lock of claim 16 wherein said disabling member includes a handing member to engage the one or both of the actuator members, the handing member being Smovable to determine which actuator members are to be free to move to retract the tongue. [I:\daylib'libtt]02112.doc:lam:hxa:KEH 12
18. The lock of claim 17 wherein the handing member is moved angularly to determine which actuator members are free to move to retract the tongue.
19. The lock of claim 18 wherein said handing member includes a slot operatively associated with each actuated member, with the position of the slots determining which of the actuator members are free for movement to retract the tongue, with the handing member being angularly moved about an axis generally normal to the direction of movement of the tongue.
The lock of any one of claims 16 to 19 wherein the disabling member is a slide, and said lock cylinder causes movement of the slide.
21. The lock of claim 19, or the lock of claim 20 when appended to claim 19, wherein each actuator member has fixed to it a flange, with the flanges being aligned with the handing member so that the handing member may prevent movement of the actuator members, each actuating member being free for movement when a respective one of the slots is positioned to prevent movement of an associated one of the actuator members.
22. The lock of any one of claims 12 to 21 wherein the arm and the pawl are provided by a single deadlock member.
23. The lock of claim 12 wherein the deadlock portion is provided by an arm member and a pawl member, each pivotally mounted for movement about said axis, with said arm member being adapted to be engaged by a cylinder lock to cause pivoting So•: movement of the pawl member, and the pawl member being engaged by the tongue 0 actuator to move the pawl member to permit movement of the tongue from the extended position to the retracted position.
24. The lock of any one of claims 1 to 23, wherein the lock is a mortise lock. A mortise lock, substantially as hereinbefore described with reference to Figures 1 to 11 of the accompanying drawings as modified with reference to Figures 12 to 16 of the accompany drawings. Dated 29 August 2002 Kaba Boyd Pty Ltd Patent Attorneys for the Applicant/Nominated Person SPRUSON FERGUSON [I:\daylib\libtt]021 12.doc:Iam:hxa:KEH
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU53643/00A AU753964B2 (en) | 1999-08-27 | 2000-08-25 | A mortise lock |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AUPQ2520A AUPQ252099A0 (en) | 1999-08-27 | 1999-08-27 | A mortise lock |
AUPQ2520 | 1999-08-27 | ||
AU53643/00A AU753964B2 (en) | 1999-08-27 | 2000-08-25 | A mortise lock |
Publications (2)
Publication Number | Publication Date |
---|---|
AU5364300A AU5364300A (en) | 2001-03-01 |
AU753964B2 true AU753964B2 (en) | 2002-10-31 |
Family
ID=25630138
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU53643/00A Expired AU753964B2 (en) | 1999-08-27 | 2000-08-25 | A mortise lock |
Country Status (1)
Country | Link |
---|---|
AU (1) | AU753964B2 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AUPR604601A0 (en) * | 2001-06-29 | 2001-07-26 | Gainsborough Hardware Industries Limited | A mortice lock |
WO2006039751A1 (en) * | 2004-10-11 | 2006-04-20 | Nova Hardware Pty Ltd | A mortice lock |
AU2005294116B2 (en) * | 2004-10-11 | 2011-03-17 | Nova Hardware Pty Ltd | A mortice lock |
CN109681032A (en) * | 2018-09-03 | 2019-04-26 | 广东金点原子安防科技股份有限公司 | A kind of improved full-automatic lock body |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU5183779A (en) * | 1979-10-16 | 1981-04-30 | Whitco Pty. Ltd. | Door lock |
AU8622682A (en) * | 1981-08-05 | 1983-02-10 | Whitco Pty. Ltd. | Deadlocking latch |
AU4863793A (en) * | 1992-11-16 | 1994-05-26 | Alchin & Long Group Pty Limited | A lock assembly |
-
2000
- 2000-08-25 AU AU53643/00A patent/AU753964B2/en not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU5183779A (en) * | 1979-10-16 | 1981-04-30 | Whitco Pty. Ltd. | Door lock |
AU8622682A (en) * | 1981-08-05 | 1983-02-10 | Whitco Pty. Ltd. | Deadlocking latch |
AU4863793A (en) * | 1992-11-16 | 1994-05-26 | Alchin & Long Group Pty Limited | A lock assembly |
Also Published As
Publication number | Publication date |
---|---|
AU5364300A (en) | 2001-03-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PC1 | Assignment before grant (sect. 113) |
Owner name: KABA BOYD PTY LTD Free format text: THE FORMER OWNER WAS: BOYD LOCK COMPANY PTY. LIMITED |
|
FGA | Letters patent sealed or granted (standard patent) | ||
MK14 | Patent ceased section 143(a) (annual fees not paid) or expired | ||
PC | Assignment registered |
Owner name: DORMA AUSTRALIA PTY LTD Free format text: FORMER OWNER(S): KABA AUSTRALIA PTY LTD |
|
HB | Alteration of name in register |
Owner name: DORMAKABA AUSTRALIA PTY LTD Free format text: FORMER NAME(S): DORMA AUSTRALIA PTY LTD |