JPS5029971B1 - - Google Patents
Info
- Publication number
- JPS5029971B1 JPS5029971B1 JP71104215A JP10421571A JPS5029971B1 JP S5029971 B1 JPS5029971 B1 JP S5029971B1 JP 71104215 A JP71104215 A JP 71104215A JP 10421571 A JP10421571 A JP 10421571A JP S5029971 B1 JPS5029971 B1 JP S5029971B1
- Authority
- JP
- Japan
- 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.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G20/00—Cultivation of turf, lawn or the like; Apparatus or methods therefor
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
- D04H1/498—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres entanglement of layered webs
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/425—Cellulose series
- D04H1/4258—Regenerated cellulose series
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4266—Natural fibres not provided for in group D04H1/425
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4282—Addition polymers
- D04H1/4291—Olefin series
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4326—Condensation or reaction polymers
- D04H1/4334—Polyamides
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4326—Condensation or reaction polymers
- D04H1/435—Polyesters
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/542—Adhesive fibres
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
- D04H1/593—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives to layered webs
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
- D04H1/74—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being orientated, e.g. in parallel (anisotropic fleeces)
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G2/00—Vegetative propagation
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Pretreatment Of Seeds And Plants (AREA)
- Cultivation Of Plants (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT1157070A AT311108B (en) | 1970-12-23 | 1970-12-23 | Composite material for planting and reinforcing surfaces and processes for their production |
AT474671A AT325882B (en) | 1970-12-23 | 1971-06-02 | COMPOSITE FOR PLANTING AND REINFORCEMENT OF AREAS |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5029971B1 true JPS5029971B1 (en) | 1975-09-27 |
Family
ID=25601468
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP71104215A Pending JPS5029971B1 (en) | 1970-12-23 | 1971-12-23 |
Country Status (17)
Country | Link |
---|---|
JP (1) | JPS5029971B1 (en) |
AT (2) | AT311108B (en) |
BE (1) | BE777038A (en) |
BR (1) | BR7108712D0 (en) |
CA (1) | CA958215A (en) |
CH (1) | CH537693A (en) |
CY (1) | CY788A (en) |
DE (1) | DE2158914A1 (en) |
DK (1) | DK129611B (en) |
ES (2) | ES397102A1 (en) |
FR (1) | FR2118898B1 (en) |
GB (1) | GB1367090A (en) |
IL (1) | IL38181A (en) |
IT (1) | IT951607B (en) |
NL (1) | NL7115700A (en) |
SE (1) | SE388751B (en) |
ZA (1) | ZA718504B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105594419A (en) * | 2015-12-19 | 2016-05-25 | 江苏艺轩园林景观工程有限公司 | Turf carpet cultivation method |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE7905479L (en) * | 1979-06-21 | 1980-12-22 | Karlholms Ab | ALTERNATIVE FOR RATIONAL QUICK CONSTRUCTION OF GRASSMATER AND TREDGARDSLAND |
US4786550A (en) * | 1985-05-06 | 1988-11-22 | Kimberly-Clark Corporation | Meltblown and coform materials having application as seed beds |
GB8615591D0 (en) * | 1986-06-26 | 1986-07-30 | Olgivy R S D | Pre-spaced seed carrier |
GB8808750D0 (en) * | 1988-04-13 | 1988-05-18 | Ridett A H | Improvements in/relating to preparation of grass-covered areas |
DE3817480A1 (en) * | 1988-05-21 | 1989-11-23 | B & J Vliesstoff Gmbh | Nonwoven, production of the nonwoven and apparatus for producing the nonwoven for biological surface treatment |
AT393931B (en) * | 1990-04-03 | 1992-01-10 | Schoeller Textil Hard Ges M B | EROSION PROTECTION AND PLANT MAT |
US5224292A (en) * | 1990-04-11 | 1993-07-06 | E. I. Du Pont De Nemours And Company | Fibrous mat for growing plants |
DE4110385A1 (en) * | 1991-03-28 | 1992-10-01 | Horst Lettenmayer | Mat for cultivation of plants in poor ground conditions - comprises underlay and upper layer formed into series of sealed domes supplied from beneath with water and nutrients |
FR2690378B1 (en) * | 1992-04-24 | 1995-09-01 | Chassy Michel | MULTI-FUNCTIONAL COMPLEX MATERIAL FOR PACKAGING AND PROCESSING OF SCALABLE PRODUCTS. |
AT404213B (en) * | 1996-05-28 | 1998-09-25 | Kazil Otto Ing | EROSION PROTECTION AND PLANT MAT |
DE19648106C2 (en) * | 1996-11-21 | 1999-07-01 | Wolfgang Behrens | Greening element and method for forming a greening |
US6070358A (en) * | 1997-02-12 | 2000-06-06 | Meikle; Robert Andrew Ross | Seed germination system |
DE19911114C2 (en) * | 1999-03-12 | 2003-03-20 | Titv Greiz | Fiber mat to promote crop growth |
ES2178957B1 (en) * | 2001-02-05 | 2003-12-16 | Rio Dominguez Manuel Del | NEW APPLICATIONS OF ASPHALT MEMBRANES IN REFORESTATION, SILVICULTURE AND AGRICULTURE IN GENERAL. |
CN103621351B (en) * | 2013-10-27 | 2015-04-15 | 大连东芳果菜专业合作社 | Rooting fiber mat for seedling cultivation |
US11690329B1 (en) | 2014-10-22 | 2023-07-04 | Siby Pothen | Eco-friendly netting and methods of growing and harvesting sod using the same |
US10687483B1 (en) | 2014-10-22 | 2020-06-23 | Siby Pothen | Eco-friendly netting and methods of growing and harvesting sod using the same |
US11134621B1 (en) | 2014-10-22 | 2021-10-05 | Siby Pothen | Eco-friendly netting and methods of growing and harvesting sod using the same |
EP3509411A4 (en) * | 2016-09-12 | 2020-04-29 | Hamama, Inc. | Seed quilts |
US11212956B2 (en) | 2016-09-12 | 2022-01-04 | Hamama, Inc. | Growing seed quilts |
SE542425C2 (en) | 2018-08-24 | 2020-04-28 | Yilmaz Haakan Isak | A machine and a method of producing biodegradable nonwoven textile comprising seeds |
CN117084096B (en) * | 2023-08-24 | 2024-05-03 | 安徽万秀园生态农业集团有限公司 | Processing technology of double-layer straw fiber seedling raising container and double-layer seedling raising container |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4526597Y1 (en) * | 1966-07-04 | 1970-10-16 |
-
1970
- 1970-12-23 AT AT1157070A patent/AT311108B/en not_active IP Right Cessation
-
1971
- 1971-06-02 AT AT474671A patent/AT325882B/en active
- 1971-10-04 CH CH1440471A patent/CH537693A/en not_active IP Right Cessation
- 1971-11-03 DK DK538071AA patent/DK129611B/en not_active Application Discontinuation
- 1971-11-11 ES ES71397102A patent/ES397102A1/en not_active Expired
- 1971-11-15 NL NL7115700A patent/NL7115700A/xx unknown
- 1971-11-19 IL IL7138181A patent/IL38181A/en unknown
- 1971-11-26 FR FR717142421A patent/FR2118898B1/fr not_active Expired
- 1971-11-27 DE DE19712158914 patent/DE2158914A1/en active Pending
- 1971-12-08 CY CY788A patent/CY788A/en unknown
- 1971-12-08 GB GB5708671A patent/GB1367090A/en not_active Expired
- 1971-12-20 ZA ZA718504A patent/ZA718504B/en unknown
- 1971-12-21 SE SE7116402A patent/SE388751B/en unknown
- 1971-12-21 BE BE777038A patent/BE777038A/en unknown
- 1971-12-22 IT IT3273571A patent/IT951607B/en active
- 1971-12-22 CA CA130,807A patent/CA958215A/en not_active Expired
- 1971-12-23 JP JP71104215A patent/JPS5029971B1/ja active Pending
- 1971-12-31 BR BR008712/71A patent/BR7108712D0/en unknown
-
1972
- 1972-02-23 ES ES1972177526U patent/ES177526Y/en not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4526597Y1 (en) * | 1966-07-04 | 1970-10-16 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105594419A (en) * | 2015-12-19 | 2016-05-25 | 江苏艺轩园林景观工程有限公司 | Turf carpet cultivation method |
Also Published As
Publication number | Publication date |
---|---|
IL38181A (en) | 1975-06-25 |
FR2118898A1 (en) | 1972-08-04 |
AU3634771A (en) | 1973-05-03 |
IT951607B (en) | 1973-07-10 |
ES177526Y (en) | 1973-03-01 |
CA958215A (en) | 1974-11-26 |
NL7115700A (en) | 1972-06-27 |
FR2118898B1 (en) | 1973-06-29 |
BE777038A (en) | 1972-06-21 |
IL38181A0 (en) | 1972-01-27 |
BR7108712D0 (en) | 1973-08-28 |
DE2158914A1 (en) | 1972-07-27 |
ATA474671A (en) | 1975-01-15 |
SE388751B (en) | 1976-10-18 |
CH537693A (en) | 1973-06-15 |
ES177526U (en) | 1972-10-01 |
CY788A (en) | 1976-06-01 |
DK129611B (en) | 1974-11-04 |
AT311108B (en) | 1973-10-25 |
ZA718504B (en) | 1973-08-29 |
ES397102A1 (en) | 1975-04-01 |
AT325882B (en) | 1975-11-10 |
GB1367090A (en) | 1974-09-18 |