EP0119842A2 - Improved electric guitar - Google Patents
Improved electric guitar Download PDFInfo
- Publication number
- EP0119842A2 EP0119842A2 EP84301783A EP84301783A EP0119842A2 EP 0119842 A2 EP0119842 A2 EP 0119842A2 EP 84301783 A EP84301783 A EP 84301783A EP 84301783 A EP84301783 A EP 84301783A EP 0119842 A2 EP0119842 A2 EP 0119842A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- guitar
- electric guitar
- electric
- pickup
- bridge
- 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.)
- Withdrawn
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Images
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H3/00—Instruments in which the tones are generated by electromechanical means
- G10H3/12—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument
- G10H3/14—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument using mechanically actuated vibrators with pick-up means
- G10H3/18—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument using mechanically actuated vibrators with pick-up means using a string, e.g. electric guitar
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10D—STRINGED MUSICAL INSTRUMENTS; WIND MUSICAL INSTRUMENTS; ACCORDIONS OR CONCERTINAS; PERCUSSION MUSICAL INSTRUMENTS; AEOLIAN HARPS; SINGING-FLAME MUSICAL INSTRUMENTS; MUSICAL INSTRUMENTS NOT OTHERWISE PROVIDED FOR
- G10D1/00—General design of stringed musical instruments
- G10D1/04—Plucked or strummed string instruments, e.g. harps or lyres
- G10D1/05—Plucked or strummed string instruments, e.g. harps or lyres with fret boards or fingerboards
- G10D1/08—Guitars
- G10D1/085—Mechanical design of electric guitars
Definitions
- This invention relates to an improved electric guitar and is more especially directed at providing an electric guitar which can optionally be used as an acoustic or amplified acoustic guitar.
- the electric guitar has been constructed with a solid body to which electromagnetic pickups have been mounted for sensing vibrations of the strings to produce a signal which can be amplified as the instrument output. While very popular and of considerable use for certain of the more popular types of modern music, such guitars cannot produce any substantial degree of audible sound if used without the electrical pickup and amplification and also do not provide the tone and musical qualities required of a conventional acoustic guitar which is used for playing more traditional and classical types of guitar music. Attempts have been made to amplify the music obtained from acoustic guitars, which have a thin-walled hollow body, by mounting.
- the present invention is directed at providing a guitar which has the more beneficial characteristics of both the amplified acoustic and conventional electric guitars and yet which can also be used without any electrical amplification whatsoever to produce a direct sound of good quality when the player requires, as for example when playing in a confined space or when practising.
- an electric guitar comprising a hollow body with a neck rigidly attached thereto for tensioning strings attached to a bridge carried on the front face of the body, said body comprising a rigid back and sides defining the rear and sides of an internal cavity and a flexible front table covering the cavity and to which the bridge is secured, an aperture being provided through said table with an electric pickup securely mounted to the rigid back of the body within the cavity projecting through the aperture to a location for cooperation with the guitar strings.
- one pickup, the lead pickup is provided closely adjacent the bridge with a second, rhythm, pickup being provided between the first pickup and the neck.
- the second pickup can be provided projecting from a portion of the table rigidly secured to the metal of the body so that the vibrating part of the table which is used when the guitar is in its acoustic mode is that portion of the table which covers a cavity through which is rigidly secured the first, lead, pickup to project through the aperture in the table.
- a transducer for allowing the guitar to be used to provide an output similar to that of an amplified acoustic guitar can be secured to the undersurface of the flexible table within the cavity in the body.
- an additional switch may be provided on the front of the guitar for controlling whether the guitar is being used in its electric or amplified acoustic mode.
- the cover be made of a fairly resilient material, for example spruce, and also be provided with suitable stiffening on its rear side by a system of spaced bracing.
- the bridge can then be relatively massive, being secured through the table to the bracing, with the result that the strings of the instrument are adequately supported for use in electric mode and provide a good quality sound vibration to the vibrating table in the acoustic mode of the guitar,
- a guitar having a body from which projects a neck 11 provided with the usual peg head 10. Strings are tensioned from the peg head over a fret board on the neck 11 to a bridge 16 mounted on the front table 23 of the guitar body. Projecting from the guitar body are a rhythm pickup 12 and a lead pickup 13 for sensing vibrations of the strings when the guitar is being used in its electric mode. Also mounted on the front table 23 of the guitar are the various controls illustrated as a three position pickup selector switch 17 for use when the guitar is in its electric mode, the switch being movable between three positions in which either the lead pickup 13 only, both pickups or the rhythm pickup 12 only are in operation. A second switch 14 is actuatable between positions to control whether the guitar is in its electric or its amplified acoustic mode.
- Knobs 19 and 21 are volume control knobs operable respectively when the guitar is in its amplified acoustic and electric modes.
- the knob 18 is a tone control for the rhythm pickup and it also has a push-pull switch to control a conventional variable coil tap arrangement for the rhythm pickup.
- the knob 20 serves a similar function for controlling operation of the lead pickup.
- the body of the guitar has a substantially rigid and massive back and sides 32 surrounding an internal cavity 24. These portions of the body are sufficiently solid and rigid to act in a similar manner to the rigid body of a conventional electric guitar.
- a mounting block 25 is shown rigidly attached to the back of the guitar while the body is also shown as comprising a recess 33 for receipt of the rhythm pickup.
- An acoustic pre-amplifier 31 is shown mounted in the cavity secured to the rigid side wall thereof.
- the general internal arrangement of the guitar body can be appreciated from Fig. 3, where the cavity 24 with the mounting block 25 is visible with the lead pickup 13 projecting through an aperture 15 in the table 23.
- the rhythm pickup 12 is mounted in the aperture 33 in the body to project through an aperture 28 in the front or table 23. It will thus be appreciated that the rhythm pickup 12 projects from a rigidly supported, non-vibrating, portion of the table 23.
- a preferred material for the table is spruce.
- the bridge 16 In order to obtain good acoustic properties it is preferred for the bridge 16 to be made fairly massively of solid metal and secured in position by bolts 28 which pass through the table 23 and engage a main piece 27 of bracing secured to the underneath of the table 23 within the cavity 24 as shown in Fig. 4. Radiating outwardly from the main piece 27 of the bracing towards the side wall 32 of the body are arms 26. Also secured to the underside of the table 23 is a transducer 30 which is activated when the guitar is used in its amplified acoustic mode.
- the electric guitar is of sufficiently rigid construction to operate successfully as a conventional electric guitar and yet it can be simply switched so as to deactivate both the pickups and activate the transducer 30 and then be used to provide an output at least comparable with that obtained from an amplified acoustic guitar. With no electric amplification at all a substantial and adequate volume output can still be obtained simply in a normal acoustic mode using the cavity 24 as a sound box with the vibrating carefully braced table 23 of flexible wood thereabove.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Stringed Musical Instruments (AREA)
- Electrophonic Musical Instruments (AREA)
Abstract
An electric guitar has a body which has a rigid back and side walls defining an internal cavity covered by a flexible table 23. A pickup 13 is rigidly attached to the back of the body and projects upwardly from the cavity through an aperture 1 in the front table into a location to cooperate with the strings. A transducer is mounted to the underside of the table which is provided with bracing within the cavity. With this arrangement, the guitar can either be used as a conventional electric guitar, as an acoustic guitar without electrical amplification, or as an amplified acoustic guitar using the transducer.
Description
- This invention relates to an improved electric guitar and is more especially directed at providing an electric guitar which can optionally be used as an acoustic or amplified acoustic guitar.
- Traditionally for proper operation of an electric guitar, especially at high volumes, the electric guitar has been constructed with a solid body to which electromagnetic pickups have been mounted for sensing vibrations of the strings to produce a signal which can be amplified as the instrument output. While very popular and of considerable use for certain of the more popular types of modern music, such guitars cannot produce any substantial degree of audible sound if used without the electrical pickup and amplification and also do not provide the tone and musical qualities required of a conventional acoustic guitar which is used for playing more traditional and classical types of guitar music. Attempts have been made to amplify the music obtained from acoustic guitars, which have a thin-walled hollow body, by mounting. a transducer to the face or some other portion of the body in order to sense vibrations of that body portion and produce an electric signal which can be amplified. However, this solution is by no means fully satisfactory in that feedback and other problems can arise, especially when a substantial degree of amplification is being used, causing a distortion of the output.
- The present invention is directed at providing a guitar which has the more beneficial characteristics of both the amplified acoustic and conventional electric guitars and yet which can also be used without any electrical amplification whatsoever to produce a direct sound of good quality when the player requires, as for example when playing in a confined space or when practising.
- According to the present invention there is provided an electric guitar comprising a hollow body with a neck rigidly attached thereto for tensioning strings attached to a bridge carried on the front face of the body, said body comprising a rigid back and sides defining the rear and sides of an internal cavity and a flexible front table covering the cavity and to which the bridge is secured, an aperture being provided through said table with an electric pickup securely mounted to the rigid back of the body within the cavity projecting through the aperture to a location for cooperation with the guitar strings. Preferably, one pickup, the lead pickup, is provided closely adjacent the bridge with a second, rhythm, pickup being provided between the first pickup and the neck. Preferably the second pickup can be provided projecting from a portion of the table rigidly secured to the metal of the body so that the vibrating part of the table which is used when the guitar is in its acoustic mode is that portion of the table which covers a cavity through which is rigidly secured the first, lead, pickup to project through the aperture in the table. A transducer for allowing the guitar to be used to provide an output similar to that of an amplified acoustic guitar can be secured to the undersurface of the flexible table within the cavity in the body. As well as conventional controls for controlling the volume and tone of the lead and rhythm pickups an additional switch may be provided on the front of the guitar for controlling whether the guitar is being used in its electric or amplified acoustic mode.
- In order to obtain proper vibration of the table over the cavity to provide good acoustic properties to the guitar when used in its acoustic mode, it is desirable that the cover be made of a fairly resilient material, for example spruce, and also be provided with suitable stiffening on its rear side by a system of spaced bracing. The bridge can then be relatively massive, being secured through the table to the bracing, with the result that the strings of the instrument are adequately supported for use in electric mode and provide a good quality sound vibration to the vibrating table in the acoustic mode of the guitar,
- The invention will be further described, by way of example, with reference to the accompanying drawings, in which:
- Figure 1 is a plan view of a guitar embodying the invention;
- Figure 2 is a diagrammatic plan view of the instrument with the top or table removed showing the internal cavity;
- Figure 3 is a diagrammatic side elevation view of the guitar with the stringing and bridge omitted; and
- Figure 4 is a view of the table from below.
- Referring to the drawings, in Fig. 1 there is shown a guitar having a body from which projects a
neck 11 provided with theusual peg head 10. Strings are tensioned from the peg head over a fret board on theneck 11 to abridge 16 mounted on the front table 23 of the guitar body. Projecting from the guitar body are arhythm pickup 12 and alead pickup 13 for sensing vibrations of the strings when the guitar is being used in its electric mode. Also mounted on the front table 23 of the guitar are the various controls illustrated as a three positionpickup selector switch 17 for use when the guitar is in its electric mode, the switch being movable between three positions in which either thelead pickup 13 only, both pickups or therhythm pickup 12 only are in operation. Asecond switch 14 is actuatable between positions to control whether the guitar is in its electric or its amplified acoustic mode. -
Knobs knob 18 is a tone control for the rhythm pickup and it also has a push-pull switch to control a conventional variable coil tap arrangement for the rhythm pickup. Theknob 20 serves a similar function for controlling operation of the lead pickup. - While these particular control arrangements have been indicated it will be appreciated that these may be varied as convenient, for example a common volume control could be used for both the amplified acoustic and the electric modes.
- As should be appreciated from Fig. 2, the body of the guitar has a substantially rigid and massive back and
sides 32 surrounding aninternal cavity 24. These portions of the body are sufficiently solid and rigid to act in a similar manner to the rigid body of a conventional electric guitar. Provided in the cavity 24 amounting block 25 is shown rigidly attached to the back of the guitar while the body is also shown as comprising arecess 33 for receipt of the rhythm pickup. Anacoustic pre-amplifier 31 is shown mounted in the cavity secured to the rigid side wall thereof. - The general internal arrangement of the guitar body can be appreciated from Fig. 3, where the
cavity 24 with themounting block 25 is visible with thelead pickup 13 projecting through anaperture 15 in the table 23. Therhythm pickup 12 is mounted in theaperture 33 in the body to project through anaperture 28 in the front or table 23. It will thus be appreciated that therhythm pickup 12 projects from a rigidly supported, non-vibrating, portion of the table 23. - In order to provide good sound qualities to the vibrating portion of the table 23 covering the
cavity 24, a preferred material for the table is spruce. In order to obtain good acoustic properties it is preferred for thebridge 16 to be made fairly massively of solid metal and secured in position bybolts 28 which pass through the table 23 and engage amain piece 27 of bracing secured to the underneath of the table 23 within thecavity 24 as shown in Fig. 4. Radiating outwardly from themain piece 27 of the bracing towards theside wall 32 of the body arearms 26. Also secured to the underside of the table 23 is atransducer 30 which is activated when the guitar is used in its amplified acoustic mode. - Generally, with the construction as shown, it has been found that the electric guitar is of sufficiently rigid construction to operate successfully as a conventional electric guitar and yet it can be simply switched so as to deactivate both the pickups and activate the
transducer 30 and then be used to provide an output at least comparable with that obtained from an amplified acoustic guitar. With no electric amplification at all a substantial and adequate volume output can still be obtained simply in a normal acoustic mode using thecavity 24 as a sound box with the vibrating carefully braced table 23 of flexible wood thereabove. - While for normal high quality purposes it will be expected that the body of the guitar will be made principally of wood, other materials, for example reinforced plastics, may be used with appropriate design changes from the construction exemplified in the drawings.
- Also, while a fret board has been referred to above it is preferred that, instead, a pitchboard as described in British patent specification no. 1511840 be used.
Claims (9)
1. An electric guitar comprising a hollow body with a neck 11 rigidly projecting therefrom carrying means for tensioning strings attached to a bridge (16) carried on the front face of the body, characterised in that said body comprises a rigid back and sides (32) defining the rear and sides of an internal cavity (24) and a flexible front table (23) covering the cavity and to which the bridge is secured, an aperture (15) being provided through said table with an electric pickup (13) securely mounted (at 25) to the rigid back of the body within the cavity (24) projecting through the aperture to a location for cooperation with the guitar strings.
2. An electric guitar according to claim 1, characterised in that the pickup (13) is closely adjacent the bridge (16).
3. An electric guitar according to claim 1 or 2, characterised in that a second pickup (12) is provided projecting from a portion of the table (13) rigidly secured to the back (32) of the body at a location (33) between the first pickup (13) and the neck (11).
4. An electric guitar according to any preceding claim, characterised in that a transducer (30) is secured to the flexible table (23) whereby the guitar may be used as an amplified acoustic guitar.
5. An electric guitar according to any preceding claim, characterised in that the underside of the table (23) within the cavity (24) has bracing (26,27) secured thereto to stiffen the table.
6. An electric guitar according to claim 5, characterised in that the bridge (16) is substantially massive and secured through the table (13) to said bracing (26,27).
7. An electric guitar according to claim 6, characterised in that the bracing comprises a main piece (27) beneath the bridge (16) and to which the bridge is attached and arms (26) radiating from the main piece (27) towards the side wall of the guitar body.
8. An electric guitar according to any preceding claim, characterised in that a switch (14) is provided for selective operation of the guitar as an electric guitar or as an amplified acoustic guitar.
9. An electric guitar according to claim 8, characterised in that the switch (14) is provided on the front table (23) together with a switch (17) for selecting either one or both of separate lead and rhythm pickups (12,13), means (19,21) for controlling the output volume and means (18,20) for controlling the tone from the pickups.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB08307397A GB2137007A (en) | 1983-03-17 | 1983-03-17 | Electric guitar |
GB8307397 | 1983-03-17 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0119842A2 true EP0119842A2 (en) | 1984-09-26 |
EP0119842A3 EP0119842A3 (en) | 1986-01-29 |
Family
ID=10539746
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP84301783A Withdrawn EP0119842A3 (en) | 1983-03-17 | 1984-03-15 | Improved electric guitar |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0119842A3 (en) |
JP (1) | JPS60494A (en) |
KR (1) | KR840008192A (en) |
AU (1) | AU2565184A (en) |
GB (1) | GB2137007A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007025330A1 (en) * | 2005-08-30 | 2007-03-08 | Australian Native Musical Instruments Pty Ltd | A sensor for an acoustic instrument |
US7982125B2 (en) | 2005-04-28 | 2011-07-19 | Yamaha Corporation | Transducer and stringed musical instrument including the same |
WO2016014518A3 (en) * | 2014-07-21 | 2016-04-21 | The Research Assembly Workshop, LLC | Interchangeable guitar faceplate and guitar body system |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2155230A (en) * | 1984-02-02 | 1985-09-18 | Bond Guitars Ltd | Electric stringed instrument |
DE3606330A1 (en) * | 1986-02-27 | 1987-11-19 | Baer Karl Ludwig | Stringed instrument and use thereof |
US4913024A (en) * | 1987-02-05 | 1990-04-03 | Carriveau Ronald S | Electric guitar apparatus having magnetic and crystal pickups |
US4987815A (en) * | 1988-07-25 | 1991-01-29 | Gary Shockley | Acoustic and electric combination guitar |
EP0421416B1 (en) * | 1989-10-05 | 1998-08-26 | Canon Kabushiki Kaisha | Heat fixable toner and heat fixing method |
USD388437S (en) | 1996-04-19 | 1997-12-30 | Canon Kabushiki Kaisha | Earphone for portable terminal |
US5723804A (en) * | 1996-07-10 | 1998-03-03 | Gibson Guitar Corp. | Electric monophonic/stereophonic stringed resonator instrument |
US7439427B2 (en) * | 2006-06-01 | 2008-10-21 | Fender Musical Instruments Corporation | Guitar body reinforcement |
DE102008022280A1 (en) * | 2008-04-24 | 2009-11-05 | Michael Beck | Electrified plucking and stringed instrument with one or more cavities |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3515024A (en) * | 1968-04-29 | 1970-06-02 | Paul Daniel Broussard | Stringed musical instrument body construction and finish |
US4144793A (en) * | 1977-06-20 | 1979-03-20 | Soika Emil H | Stringed instrument construction employing an integral, hollow, one piece body portion |
US4178827A (en) * | 1978-04-19 | 1979-12-18 | Mallory William K | Stringed instrument construction |
US4320684A (en) * | 1980-03-03 | 1982-03-23 | Bozo Podunavac | Guitar construction |
US4359923A (en) * | 1981-09-28 | 1982-11-23 | Brunet James W | Unitary guitar construction |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4254683A (en) * | 1978-12-08 | 1981-03-10 | David Nulman | Stringed electrical instrument |
GB2038069B (en) * | 1978-12-12 | 1982-09-22 | Zalinge H Van | Stringed musical instrument |
-
1983
- 1983-03-17 GB GB08307397A patent/GB2137007A/en not_active Withdrawn
-
1984
- 1984-03-15 EP EP84301783A patent/EP0119842A3/en not_active Withdrawn
- 1984-03-15 AU AU25651/84A patent/AU2565184A/en not_active Abandoned
- 1984-03-15 JP JP59050800A patent/JPS60494A/en active Pending
- 1984-03-16 KR KR1019840001348A patent/KR840008192A/en not_active Application Discontinuation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3515024A (en) * | 1968-04-29 | 1970-06-02 | Paul Daniel Broussard | Stringed musical instrument body construction and finish |
US4144793A (en) * | 1977-06-20 | 1979-03-20 | Soika Emil H | Stringed instrument construction employing an integral, hollow, one piece body portion |
US4178827A (en) * | 1978-04-19 | 1979-12-18 | Mallory William K | Stringed instrument construction |
US4320684A (en) * | 1980-03-03 | 1982-03-23 | Bozo Podunavac | Guitar construction |
US4359923A (en) * | 1981-09-28 | 1982-11-23 | Brunet James W | Unitary guitar construction |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7982125B2 (en) | 2005-04-28 | 2011-07-19 | Yamaha Corporation | Transducer and stringed musical instrument including the same |
WO2007025330A1 (en) * | 2005-08-30 | 2007-03-08 | Australian Native Musical Instruments Pty Ltd | A sensor for an acoustic instrument |
WO2016014518A3 (en) * | 2014-07-21 | 2016-04-21 | The Research Assembly Workshop, LLC | Interchangeable guitar faceplate and guitar body system |
Also Published As
Publication number | Publication date |
---|---|
EP0119842A3 (en) | 1986-01-29 |
AU2565184A (en) | 1984-09-20 |
GB2137007A (en) | 1984-09-26 |
JPS60494A (en) | 1985-01-05 |
GB8307397D0 (en) | 1983-04-27 |
KR840008192A (en) | 1984-12-13 |
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Legal Events
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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AK | Designated contracting states |
Designated state(s): AT BE CH DE FR IT LI LU NL SE |
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PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
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AK | Designated contracting states |
Designated state(s): AT BE CH DE FR IT LI LU NL SE |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 19861230 |
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RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: BOND, ANDREW |