DE2448418C2 - Verfahren und Vorrichtung zur Behandlung von Abgasen, die bei der Herstellung von Matten oder Platten aus Mineralfasern abgegeben werden - Google Patents
Verfahren und Vorrichtung zur Behandlung von Abgasen, die bei der Herstellung von Matten oder Platten aus Mineralfasern abgegeben werdenInfo
- Publication number
- DE2448418C2 DE2448418C2 DE2448418A DE2448418A DE2448418C2 DE 2448418 C2 DE2448418 C2 DE 2448418C2 DE 2448418 A DE2448418 A DE 2448418A DE 2448418 A DE2448418 A DE 2448418A DE 2448418 C2 DE2448418 C2 DE 2448418C2
- Authority
- DE
- Germany
- Prior art keywords
- water
- fiber
- exhaust gases
- gases
- fibers
- 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
Links
- 239000007789 gas Substances 0.000 title claims description 153
- 238000000034 method Methods 0.000 title claims description 47
- 238000004519 manufacturing process Methods 0.000 title claims description 27
- 239000002557 mineral fiber Substances 0.000 title claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 161
- 239000000835 fiber Substances 0.000 claims description 136
- 239000011230 binding agent Substances 0.000 claims description 76
- 238000005406 washing Methods 0.000 claims description 39
- 238000007380 fibre production Methods 0.000 claims description 24
- 230000015572 biosynthetic process Effects 0.000 claims description 22
- 210000000056 organ Anatomy 0.000 claims description 17
- 230000008569 process Effects 0.000 claims description 16
- 239000000498 cooling water Substances 0.000 claims description 15
- 238000004140 cleaning Methods 0.000 claims description 13
- 239000012530 fluid Substances 0.000 claims description 10
- 239000012535 impurity Substances 0.000 claims description 8
- 239000011094 fiberboard Substances 0.000 claims description 3
- 238000007084 catalytic combustion reaction Methods 0.000 claims 1
- 230000003134 recirculating effect Effects 0.000 claims 1
- 238000004064 recycling Methods 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000001816 cooling Methods 0.000 description 29
- 239000002699 waste material Substances 0.000 description 27
- 239000000463 material Substances 0.000 description 21
- 239000007921 spray Substances 0.000 description 18
- 230000009471 action Effects 0.000 description 11
- 238000000926 separation method Methods 0.000 description 9
- 239000000470 constituent Substances 0.000 description 6
- 238000001914 filtration Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- 238000005470 impregnation Methods 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 238000012546 transfer Methods 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 4
- 239000012809 cooling fluid Substances 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000005192 partition Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 239000000356 contaminant Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 238000005189 flocculation Methods 0.000 description 3
- 230000016615 flocculation Effects 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000012768 molten material Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 238000007669 thermal treatment Methods 0.000 description 3
- 230000002745 absorbent Effects 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 230000001580 bacterial effect Effects 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000005201 scrubbing Methods 0.000 description 2
- 239000002910 solid waste Substances 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 235000006679 Mentha X verticillata Nutrition 0.000 description 1
- 235000002899 Mentha suaveolens Nutrition 0.000 description 1
- 235000001636 Mentha x rotundifolia Nutrition 0.000 description 1
- 229920001410 Microfiber Polymers 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 229920003180 amino resin Polymers 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000000721 bacterilogical effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000003658 microfiber Substances 0.000 description 1
- 239000011859 microparticle Substances 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 235000019645 odor Nutrition 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 231100000701 toxic element Toxicity 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
-
- 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
- D04H1/72—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 randomly arranged
- D04H1/732—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 randomly arranged by fluid current, e.g. air-lay
-
- 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
- D04H1/4209—Inorganic 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
- D04H1/4209—Inorganic fibres
- D04H1/4218—Glass 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
- D04H1/4209—Inorganic fibres
- D04H1/4218—Glass fibres
- D04H1/4226—Glass fibres characterised by the apparatus for manufacturing the glass fleece
-
- 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
- D04H1/64—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 the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
-
- 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
- D04H1/72—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 randomly arranged
- D04H1/736—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 randomly arranged characterised by the apparatus for arranging fibres
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing & Machinery (AREA)
- Nonwoven Fabrics (AREA)
- Treating Waste Gases (AREA)
- Processing Of Solid Wastes (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7336169A FR2247346B1 (enrdf_load_stackoverflow) | 1973-10-10 | 1973-10-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2448418A1 DE2448418A1 (de) | 1975-05-07 |
| DE2448418C2 true DE2448418C2 (de) | 1986-06-26 |
Family
ID=9126200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2448418A Expired DE2448418C2 (de) | 1973-10-10 | 1974-10-10 | Verfahren und Vorrichtung zur Behandlung von Abgasen, die bei der Herstellung von Matten oder Platten aus Mineralfasern abgegeben werden |
Country Status (24)
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4050367A (en) * | 1976-05-06 | 1977-09-27 | Marion L. Eakes Co. | Ventilating system for industrial machines |
| JPS581052B2 (ja) * | 1976-11-09 | 1983-01-10 | 三井造船株式会社 | 鉱滓の細分化・熱回収方法 |
| FR2460360A1 (fr) * | 1979-07-02 | 1981-01-23 | Flaekt Ind | Procede et dispositif de depollution dans une installation de fabrication d'un matelas de fibres |
| FR2503134B1 (fr) * | 1981-04-02 | 1985-06-14 | Saint Gobain Isover | Procede et dispositif de lavage utilises dans la fabrication de matelas de fibres minerales |
| DE4141659A1 (de) * | 1991-12-17 | 1993-06-24 | Gruenzweig & Hartmann | Verfahren und vorrichtung zur kontinuierlichen herstellung von mineralwollevliesen |
| AT400712B (de) * | 1993-05-24 | 1996-03-25 | Heraklith Baustoffe Ag | Verfahren und vorrichtung zur luftführung an spinnmaschinen |
| CN103357231A (zh) * | 2012-04-01 | 2013-10-23 | 昆山市创新科技检测仪器有限公司 | 一种空气净化装置及其净化处理的方法 |
| CN102798128A (zh) * | 2012-09-07 | 2012-11-28 | 无锡锡通工程机械有限公司 | 沥青烟气处理装置 |
| ITMI20122000A1 (it) * | 2012-11-26 | 2014-05-27 | Fisi Fibre Sint Spa | Metodo per la realizzazione di una imbottitura di spessore ridotto e con fibre stabilizzate, particolarmente per l'utilizzo in capi di abbigliamento, di trapunte e di sacchi a pelo. |
| CN110841397A (zh) * | 2019-12-09 | 2020-02-28 | 郑州华瑞伟业电子科技有限公司 | 一种用于煤运列车的固定式智能抑尘系统 |
| FR3105268B1 (fr) * | 2019-12-20 | 2022-08-12 | Saint Gobain Isover | Dispositif de preparation d’un produit d’isolation a base de laine, notamment minerale |
| CN111905528A (zh) * | 2020-08-24 | 2020-11-10 | 王莉 | 一种操作简单的玻璃基板窑炉废气处理装置 |
| CN112619375A (zh) * | 2020-12-02 | 2021-04-09 | 中交二公局第三工程有限公司 | 一种沥青拌合楼封闭式吸尘废气处理系统 |
| CN112941646A (zh) * | 2021-01-27 | 2021-06-11 | 福建永荣锦江股份有限公司 | 一种便于清理的纺丝窗除尘冷却装置 |
| CN116288940B (zh) * | 2023-03-17 | 2023-10-10 | 浙江中超新材料股份有限公司 | 一种三层式喷胶干燥箱及其控制方法 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1594689A1 (de) * | 1966-06-02 | 1970-03-26 | Wilhelm Stark | Verfahren und Vorrichtung zum Reinigen von Abgasen |
| GB1248393A (en) * | 1967-08-21 | 1971-09-29 | Fibreglass Ltd | Improvements in the avoidance of air pollution in the manufacture of glass fibre products |
| DE2163183C3 (de) * | 1971-12-20 | 1975-11-13 | Krautzberger & Co, 6228 Eltville | Vorrichtung zum Absaugen von Sprühnebeln |
| GB1421346A (en) * | 1971-12-20 | 1976-01-14 | Agk Ind Inc | Moulding an article |
-
1973
- 1973-10-10 FR FR7336169A patent/FR2247346B1/fr not_active Expired
-
1974
- 1974-09-25 NL NLAANVRAGE7412646,A patent/NL172471C/xx not_active IP Right Cessation
- 1974-09-30 IL IL45755A patent/IL45755A/xx unknown
- 1974-10-01 NO NO743568A patent/NO743568L/no unknown
- 1974-10-02 ZA ZA00746264A patent/ZA746264B/xx unknown
- 1974-10-03 GB GB4299874A patent/GB1429580A/en not_active Expired
- 1974-10-04 CA CA210,777A patent/CA1056568A/en not_active Expired
- 1974-10-04 CA CA210,821A patent/CA1069645A/en not_active Expired
- 1974-10-04 FI FI2912/74A patent/FI58114C/fi active
- 1974-10-04 IE IE2065/74A patent/IE41882B1/en unknown
- 1974-10-07 AR AR255957A patent/AR209427A1/es active
- 1974-10-08 IT IT28205/74A patent/IT1022709B/it active
- 1974-10-09 CH CH1358374A patent/CH610955A5/xx not_active IP Right Cessation
- 1974-10-09 JP JP49115665A patent/JPS5843339B2/ja not_active Expired
- 1974-10-09 LU LU71077A patent/LU71077A1/xx unknown
- 1974-10-09 DK DK528274AA patent/DK149647B/da not_active Application Discontinuation
- 1974-10-09 HU HU74SA3028A patent/HU175296B/hu unknown
- 1974-10-09 CH CH381777A patent/CH597287A5/xx not_active IP Right Cessation
- 1974-10-09 SU SU742068848A patent/SU843766A3/ru active
- 1974-10-09 AT AT0810274A patent/AT364740B/de not_active IP Right Cessation
- 1974-10-09 BR BR8419/74A patent/BR7408419A/pt unknown
- 1974-10-09 HU HU74SA00002700A patent/HU172876B/hu unknown
- 1974-10-09 SE SE7412711A patent/SE409199B/xx not_active IP Right Cessation
- 1974-10-10 PL PL1974174739A patent/PL91767B1/pl unknown
- 1974-10-10 BE BE149424A patent/BE820942A/xx not_active IP Right Cessation
- 1974-10-10 DE DE2448418A patent/DE2448418C2/de not_active Expired
- 1974-10-10 TR TR18256A patent/TR18256A/xx unknown
-
1977
- 1977-03-15 NO NO770918A patent/NO770918L/no unknown
Also Published As
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