GB2145090A - Hydrolysis of lignocellulosic materials - Google Patents
Hydrolysis of lignocellulosic materials Download PDFInfo
- Publication number
- GB2145090A GB2145090A GB08420257A GB8420257A GB2145090A GB 2145090 A GB2145090 A GB 2145090A GB 08420257 A GB08420257 A GB 08420257A GB 8420257 A GB8420257 A GB 8420257A GB 2145090 A GB2145090 A GB 2145090A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reaction
- extraction
- organic matter
- hydrolysis
- cellulose
- 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- Withdrawn
Links
- 238000006460 hydrolysis reaction Methods 0.000 title claims abstract description 51
- 230000007062 hydrolysis Effects 0.000 title claims abstract description 42
- 239000012978 lignocellulosic material Substances 0.000 title 1
- 238000000034 method Methods 0.000 claims abstract description 74
- 230000008569 process Effects 0.000 claims abstract description 52
- 239000005416 organic matter Substances 0.000 claims abstract description 44
- 229920002678 cellulose Polymers 0.000 claims abstract description 33
- 239000001913 cellulose Substances 0.000 claims abstract description 31
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229920005610 lignin Polymers 0.000 claims abstract description 21
- 150000002972 pentoses Chemical class 0.000 claims abstract description 16
- 150000002402 hexoses Chemical class 0.000 claims abstract description 15
- 235000019441 ethanol Nutrition 0.000 claims abstract description 12
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 claims abstract description 11
- 239000008103 glucose Substances 0.000 claims abstract description 11
- 241000609240 Ambelania acida Species 0.000 claims abstract description 5
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 claims abstract description 5
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims abstract description 5
- 239000010905 bagasse Substances 0.000 claims abstract description 5
- 235000005822 corn Nutrition 0.000 claims abstract description 5
- 239000002699 waste material Substances 0.000 claims abstract description 5
- 239000002023 wood Substances 0.000 claims abstract description 4
- 238000000605 extraction Methods 0.000 claims description 53
- 238000006243 chemical reaction Methods 0.000 claims description 37
- 239000002904 solvent Substances 0.000 claims description 35
- 235000010980 cellulose Nutrition 0.000 claims description 26
- 239000000758 substrate Substances 0.000 claims description 22
- 230000035484 reaction time Effects 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 102000004190 Enzymes Human genes 0.000 claims description 12
- 108090000790 Enzymes Proteins 0.000 claims description 12
- 239000002028 Biomass Substances 0.000 claims description 10
- 229920002488 Hemicellulose Polymers 0.000 claims description 9
- 230000000930 thermomechanical effect Effects 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 6
- 230000003301 hydrolyzing effect Effects 0.000 claims description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 4
- 241000209149 Zea Species 0.000 claims description 4
- 239000003599 detergent Substances 0.000 claims description 4
- 238000012958 reprocessing Methods 0.000 claims description 3
- 150000001335 aliphatic alkanes Chemical class 0.000 claims description 2
- 150000002148 esters Chemical class 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 230000007071 enzymatic hydrolysis Effects 0.000 claims 4
- 238000006047 enzymatic hydrolysis reaction Methods 0.000 claims 4
- 229920001131 Pulp (paper) Polymers 0.000 claims 1
- 230000029087 digestion Effects 0.000 claims 1
- 238000001704 evaporation Methods 0.000 abstract description 3
- 230000008020 evaporation Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 235000000346 sugar Nutrition 0.000 abstract description 2
- 240000008042 Zea mays Species 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 150000008163 sugars Chemical class 0.000 abstract 1
- 239000000047 product Substances 0.000 description 10
- 239000002253 acid Substances 0.000 description 6
- 150000007513 acids Chemical class 0.000 description 5
- 239000007787 solid Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 208000036366 Sensation of pressure Diseases 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000005360 mashing Methods 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 241000331231 Amorphocerini gen. n. 1 DAD-2008 Species 0.000 description 1
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000008570 general process Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C13—SUGAR INDUSTRY
- C13K—SACCHARIDES OBTAINED FROM NATURAL SOURCES OR BY HYDROLYSIS OF NATURALLY OCCURRING DISACCHARIDES, OLIGOSACCHARIDES OR POLYSACCHARIDES
- C13K1/00—Glucose; Glucose-containing syrups
- C13K1/02—Glucose; Glucose-containing syrups obtained by saccharification of cellulosic materials
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P7/00—Preparation of oxygen-containing organic compounds
- C12P7/02—Preparation of oxygen-containing organic compounds containing a hydroxy group
- C12P7/04—Preparation of oxygen-containing organic compounds containing a hydroxy group acyclic
- C12P7/06—Ethanol, i.e. non-beverage
- C12P7/08—Ethanol, i.e. non-beverage produced as by-product or from waste or cellulosic material substrate
- C12P7/10—Ethanol, i.e. non-beverage produced as by-product or from waste or cellulosic material substrate substrate containing cellulosic material
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C3/00—Pulping cellulose-containing materials
- D21C3/20—Pulping cellulose-containing materials with organic solvents or in solvent environment
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/582—Recycling of unreacted starting or intermediate materials
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Zoology (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- General Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Bioinformatics & Cheminformatics (AREA)
- General Engineering & Computer Science (AREA)
- Biotechnology (AREA)
- Genetics & Genomics (AREA)
- Emergency Medicine (AREA)
- Processing Of Solid Wastes (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Extraction Or Liquid Replacement (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3328697 | 1983-08-09 | ||
| DE19843428661 DE3428661A1 (de) | 1983-08-09 | 1984-08-03 | Verfahren zur hydrolyse von lignocellulosehaltiger biomasse |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB8420257D0 GB8420257D0 (en) | 1984-09-12 |
| GB2145090A true GB2145090A (en) | 1985-03-20 |
Family
ID=25813044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08420257A Withdrawn GB2145090A (en) | 1983-08-09 | 1984-08-09 | Hydrolysis of lignocellulosic materials |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE3428661A1 (enrdf_load_stackoverflow) |
| DK (1) | DK382384A (enrdf_load_stackoverflow) |
| FR (1) | FR2550550A1 (enrdf_load_stackoverflow) |
| GB (1) | GB2145090A (enrdf_load_stackoverflow) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003033615A3 (en) * | 2001-10-16 | 2004-01-29 | Supachill Technologies Pty Ltd | Super-coolable composition having long duration phase change capability, process for preparation of same process for super-cooling same and articles comprising same |
| WO2006032282A1 (en) | 2004-09-24 | 2006-03-30 | Cambi Bioethanol Aps | Method for treating biomass and organic waste with the purpose of generating desired biologically based products |
| US8317928B1 (en) | 2011-05-04 | 2012-11-27 | Renmatix, Inc. | Lignin production from lignocellulosic biomass |
| US8409357B2 (en) | 2011-05-04 | 2013-04-02 | Renmatix, Inc. | Self-cleaning apparatus and method for thick slurry pressure control |
| US8546561B2 (en) | 2008-07-16 | 2013-10-01 | Renmatix, Inc. | Nano-catalytic-solvo-thermal technology platform bio-refineries |
| US8546560B2 (en) | 2008-07-16 | 2013-10-01 | Renmatix, Inc. | Solvo-thermal hydrolysis of cellulose |
| US8568533B2 (en) | 2011-05-04 | 2013-10-29 | Renmatix, Inc. | Multistage cellulose hydrolysis and quench with or without acid |
| US8608970B2 (en) | 2010-07-23 | 2013-12-17 | Red Shield Acquisition, LLC | System and method for conditioning a hardwood pulp liquid hydrolysate |
| US8663800B2 (en) | 2011-05-04 | 2014-03-04 | Renmatix, Inc. | Lignin production from lignocellulosic biomass |
| US8747561B2 (en) | 2011-05-04 | 2014-06-10 | Renmatix, Inc. | Cellulose hydrolysis with pH adjustment |
| US8759498B2 (en) | 2011-12-30 | 2014-06-24 | Renmatix, Inc. | Compositions comprising lignin |
| US8968479B2 (en) | 2010-01-19 | 2015-03-03 | Renmatix, Inc. | Production of fermentable sugars and lignin from biomass using supercritical fluids |
| US9228243B2 (en) | 2011-08-24 | 2016-01-05 | Red Shield Acquistion, LLC | System and method for conditioning a hardwood pulp liquid hydrolysate |
| US10793646B2 (en) | 2014-09-26 | 2020-10-06 | Renmatix, Inc. | Adhesive compositions comprising type-II cellulose |
| NL2028352A (en) * | 2020-06-12 | 2022-01-11 | Upm Kymmene Corp | A wood-derived carbohydrate composition |
| NL2028351A (en) * | 2020-06-12 | 2022-01-11 | Upm Kymmene Corp | A wood-derived carbohydrate composition |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU731717B2 (en) | 1997-03-18 | 2001-04-05 | 2B Ag | A method of utilizing vegetal biomass, and a screw press to carry out said method |
| DE102008024388B4 (de) * | 2007-10-09 | 2011-04-14 | Reimer Tietjen | Verfahren und Vorrichtung zur Stoffaufbereitung für eine Biogasanlage |
| DE102008004971A1 (de) | 2008-01-17 | 2009-07-30 | Desmet Ballestra Ethanol Gmbh | Stofflich und energetisch optimierter Bioethanolherstellungsprozess |
| WO2014203271A2 (en) * | 2013-06-18 | 2014-12-24 | Praj Industries Limited | Preparation of hydrolysate of lignocellulosic materials |
| AT518499A1 (de) * | 2016-04-04 | 2017-10-15 | Sfl Tech Gmbh | Verfahren und Vorrichtung zur Aufbereitung von Biomasse |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2000822A (en) * | 1977-07-11 | 1979-01-17 | Canadian Patents Dev | A method of rendering lignin separable from cellulose and hemicellulose in Lignocellulosic material |
| GB2003478A (en) * | 1977-08-17 | 1979-03-14 | Projektierung Chem Verfahrenst | Process for the production of sugars and optionally cellulose and lignin from ligno-cellulosic materials |
| GB2016014A (en) * | 1978-03-08 | 1979-09-19 | Purdue Research Foundation | Acid hydrolysis of cellulose to yield glucose |
| GB2017707A (en) * | 1978-03-08 | 1979-10-10 | Purdue Research Foundation | Process for Treating Cellulosic Materials and Obtaining Glucose Therefrom |
| GB1569138A (en) * | 1975-10-24 | 1980-06-11 | Valkanas George N | Production of monosaccharides and a cellulosicrich material from straw |
| GB1582480A (en) * | 1976-07-20 | 1981-01-07 | Projectierung Chemische Verfah | Process for the production of glucose |
| EP0096497A2 (en) * | 1982-06-01 | 1983-12-21 | Imperial Chemical Industries Plc | Solubilisation and hydrolysis of cellulose-containing materials |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT263661B (de) * | 1965-07-09 | 1968-07-25 | Bobleter Ortwin | Verfahren zum Abbau von Holz, Rinde oder andern Pflanzenmaterialien |
| DE1922932C3 (de) * | 1969-05-06 | 1978-08-31 | Cooep. Verkoop- En Productievereniging Van Aardappelmeel En Derivaten Avebe G.A., Veendam (Niederlande) | Verfahren zum Verkleistern von Stärke oder stärkehaltigen Produkten |
| DE3127684A1 (de) * | 1981-07-14 | 1983-02-03 | Supraton F.J. Zucker GmbH, 4040 Neuss | "verfahren und vorrichtung zur vergroesserung der oberflaeche pumpfaehiger materialien" |
| DE3150750C2 (de) * | 1981-12-22 | 1987-01-02 | Fried. Krupp Gmbh, 4300 Essen | Verfahren zum beschleunigten enzymatischen Abbau von Cellulose in Pflanzenmaterialien oder tierischem Protein |
-
1984
- 1984-08-03 DE DE19843428661 patent/DE3428661A1/de active Granted
- 1984-08-08 DK DK382384A patent/DK382384A/da not_active Application Discontinuation
- 1984-08-09 GB GB08420257A patent/GB2145090A/en not_active Withdrawn
- 1984-08-09 FR FR8412621A patent/FR2550550A1/fr not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1569138A (en) * | 1975-10-24 | 1980-06-11 | Valkanas George N | Production of monosaccharides and a cellulosicrich material from straw |
| GB1582480A (en) * | 1976-07-20 | 1981-01-07 | Projectierung Chemische Verfah | Process for the production of glucose |
| GB2000822A (en) * | 1977-07-11 | 1979-01-17 | Canadian Patents Dev | A method of rendering lignin separable from cellulose and hemicellulose in Lignocellulosic material |
| GB2003478A (en) * | 1977-08-17 | 1979-03-14 | Projektierung Chem Verfahrenst | Process for the production of sugars and optionally cellulose and lignin from ligno-cellulosic materials |
| GB2016014A (en) * | 1978-03-08 | 1979-09-19 | Purdue Research Foundation | Acid hydrolysis of cellulose to yield glucose |
| GB2017707A (en) * | 1978-03-08 | 1979-10-10 | Purdue Research Foundation | Process for Treating Cellulosic Materials and Obtaining Glucose Therefrom |
| EP0096497A2 (en) * | 1982-06-01 | 1983-12-21 | Imperial Chemical Industries Plc | Solubilisation and hydrolysis of cellulose-containing materials |
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003033615A3 (en) * | 2001-10-16 | 2004-01-29 | Supachill Technologies Pty Ltd | Super-coolable composition having long duration phase change capability, process for preparation of same process for super-cooling same and articles comprising same |
| WO2006032282A1 (en) | 2004-09-24 | 2006-03-30 | Cambi Bioethanol Aps | Method for treating biomass and organic waste with the purpose of generating desired biologically based products |
| US8546561B2 (en) | 2008-07-16 | 2013-10-01 | Renmatix, Inc. | Nano-catalytic-solvo-thermal technology platform bio-refineries |
| US8546560B2 (en) | 2008-07-16 | 2013-10-01 | Renmatix, Inc. | Solvo-thermal hydrolysis of cellulose |
| US10858712B2 (en) | 2010-01-19 | 2020-12-08 | Renmatix, Inc. | Production of fermentable sugars and lignin from biomass using supercritical fluids |
| US10053745B2 (en) | 2010-01-19 | 2018-08-21 | Renmatix, Inc. | Production of fermentable sugars and lignin from biomass using supercritical fluids |
| US9359651B2 (en) | 2010-01-19 | 2016-06-07 | Renmatix, Inc. | Production of fermentable sugars and lignin from biomass using supercritical fluids |
| US8968479B2 (en) | 2010-01-19 | 2015-03-03 | Renmatix, Inc. | Production of fermentable sugars and lignin from biomass using supercritical fluids |
| US8608970B2 (en) | 2010-07-23 | 2013-12-17 | Red Shield Acquisition, LLC | System and method for conditioning a hardwood pulp liquid hydrolysate |
| US8840995B2 (en) | 2011-05-04 | 2014-09-23 | Renmatix, Inc. | Lignin production from lignocellulosic biomass |
| US8317928B1 (en) | 2011-05-04 | 2012-11-27 | Renmatix, Inc. | Lignin production from lignocellulosic biomass |
| US8747561B2 (en) | 2011-05-04 | 2014-06-10 | Renmatix, Inc. | Cellulose hydrolysis with pH adjustment |
| US8663800B2 (en) | 2011-05-04 | 2014-03-04 | Renmatix, Inc. | Lignin production from lignocellulosic biomass |
| US8568533B2 (en) | 2011-05-04 | 2013-10-29 | Renmatix, Inc. | Multistage cellulose hydrolysis and quench with or without acid |
| US8404051B2 (en) | 2011-05-04 | 2013-03-26 | Renmatix, Inc. | Lignin production from lignocellulosic biomass |
| US8409357B2 (en) | 2011-05-04 | 2013-04-02 | Renmatix, Inc. | Self-cleaning apparatus and method for thick slurry pressure control |
| US9228243B2 (en) | 2011-08-24 | 2016-01-05 | Red Shield Acquistion, LLC | System and method for conditioning a hardwood pulp liquid hydrolysate |
| US9963555B2 (en) | 2011-12-30 | 2018-05-08 | Renmatix, Inc. | Compositions comprising lignin |
| US8759498B2 (en) | 2011-12-30 | 2014-06-24 | Renmatix, Inc. | Compositions comprising lignin |
| US10793646B2 (en) | 2014-09-26 | 2020-10-06 | Renmatix, Inc. | Adhesive compositions comprising type-II cellulose |
| NL2028352A (en) * | 2020-06-12 | 2022-01-11 | Upm Kymmene Corp | A wood-derived carbohydrate composition |
| NL2028351A (en) * | 2020-06-12 | 2022-01-11 | Upm Kymmene Corp | A wood-derived carbohydrate composition |
| WO2021250326A3 (en) * | 2020-06-12 | 2022-01-27 | Upm-Kymmene Corporation | A wood-derived carbohydrate composition |
| WO2021250325A3 (en) * | 2020-06-12 | 2022-01-27 | Upm-Kymmene Corporation | A wood-derived carbohydrate composition |
Also Published As
| Publication number | Publication date |
|---|---|
| GB8420257D0 (en) | 1984-09-12 |
| DK382384A (da) | 1985-02-10 |
| DK382384D0 (da) | 1984-08-08 |
| DE3428661C2 (enrdf_load_stackoverflow) | 1988-01-28 |
| FR2550550A1 (fr) | 1985-02-15 |
| DE3428661A1 (de) | 1985-03-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |