GB654083A - Spinning of viscose - Google Patents
Spinning of viscoseInfo
- Publication number
- GB654083A GB654083A GB602/48A GB60248A GB654083A GB 654083 A GB654083 A GB 654083A GB 602/48 A GB602/48 A GB 602/48A GB 60248 A GB60248 A GB 60248A GB 654083 A GB654083 A GB 654083A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- viscose
- sulphate
- bath
- 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.)
- Expired
Links
- 229920000297 Rayon Polymers 0.000 title abstract 9
- 238000009987 spinning Methods 0.000 title abstract 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 12
- 229920002678 cellulose Polymers 0.000 abstract 6
- 239000001913 cellulose Substances 0.000 abstract 6
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 abstract 4
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 abstract 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 4
- 230000001112 coagulating effect Effects 0.000 abstract 4
- 239000001117 sulphuric acid Substances 0.000 abstract 4
- 235000011149 sulphuric acid Nutrition 0.000 abstract 4
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 abstract 4
- 239000011686 zinc sulphate Substances 0.000 abstract 4
- 235000009529 zinc sulphate Nutrition 0.000 abstract 4
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 abstract 3
- 150000001412 amines Chemical class 0.000 abstract 3
- NQRYJNQNLNOLGT-UHFFFAOYSA-N Piperidine Chemical compound C1CCNCC1 NQRYJNQNLNOLGT-UHFFFAOYSA-N 0.000 abstract 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 abstract 2
- HQABUPZFAYXKJW-UHFFFAOYSA-N butan-1-amine Chemical compound CCCCN HQABUPZFAYXKJW-UHFFFAOYSA-N 0.000 abstract 2
- 125000004432 carbon atom Chemical group C* 0.000 abstract 2
- PAFZNILMFXTMIY-UHFFFAOYSA-N cyclohexylamine Chemical compound NC1CCCCC1 PAFZNILMFXTMIY-UHFFFAOYSA-N 0.000 abstract 2
- 229910052938 sodium sulfate Inorganic materials 0.000 abstract 2
- 235000011152 sodium sulphate Nutrition 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- MBDJXHDBQNHQFE-UHFFFAOYSA-N 1-amino-2-methylhexan-2-ol Chemical compound CCCCC(C)(O)CN MBDJXHDBQNHQFE-UHFFFAOYSA-N 0.000 abstract 1
- ZRUPXAZUXDFLTG-UHFFFAOYSA-N 1-aminopentan-2-ol Chemical compound CCCC(O)CN ZRUPXAZUXDFLTG-UHFFFAOYSA-N 0.000 abstract 1
- LJDSTRZHPWMDPG-UHFFFAOYSA-N 2-(butylamino)ethanol Chemical compound CCCCNCCO LJDSTRZHPWMDPG-UHFFFAOYSA-N 0.000 abstract 1
- QATXMCVRIZSPJU-UHFFFAOYSA-N 2-[2-hydroxyethyl(pentyl)amino]ethanol Chemical compound CCCCCN(CCO)CCO QATXMCVRIZSPJU-UHFFFAOYSA-N 0.000 abstract 1
- GIACMWUKBLHAAG-UHFFFAOYSA-N 2-[hexyl(2-hydroxyethyl)amino]ethanol Chemical compound CCCCCCN(CCO)CCO GIACMWUKBLHAAG-UHFFFAOYSA-N 0.000 abstract 1
- MSIAFRBGOYFCND-UHFFFAOYSA-N 2-amino-1-cyclohexylethanol Chemical compound NCC(O)C1CCCCC1 MSIAFRBGOYFCND-UHFFFAOYSA-N 0.000 abstract 1
- BFSVOASYOCHEOV-UHFFFAOYSA-N 2-diethylaminoethanol Chemical compound CCN(CC)CCO BFSVOASYOCHEOV-UHFFFAOYSA-N 0.000 abstract 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 abstract 1
- AKNUHUCEWALCOI-UHFFFAOYSA-N N-ethyldiethanolamine Chemical compound OCCN(CC)CCO AKNUHUCEWALCOI-UHFFFAOYSA-N 0.000 abstract 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 abstract 1
- 125000001931 aliphatic group Chemical group 0.000 abstract 1
- 239000003513 alkali Substances 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- ZSIQJIWKELUFRJ-UHFFFAOYSA-N azepane Chemical compound C1CCCNCC1 ZSIQJIWKELUFRJ-UHFFFAOYSA-N 0.000 abstract 1
- 210000000988 bone and bone Anatomy 0.000 abstract 1
- GRWVQDDAKZFPFI-UHFFFAOYSA-H chromium(III) sulfate Chemical compound [Cr+3].[Cr+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O GRWVQDDAKZFPFI-UHFFFAOYSA-H 0.000 abstract 1
- 239000011696 chromium(III) sulphate Substances 0.000 abstract 1
- 235000015217 chromium(III) sulphate Nutrition 0.000 abstract 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 abstract 1
- HPNMFZURTQLUMO-UHFFFAOYSA-N diethylamine Chemical compound CCNCC HPNMFZURTQLUMO-UHFFFAOYSA-N 0.000 abstract 1
- 239000012895 dilution Substances 0.000 abstract 1
- 238000010790 dilution Methods 0.000 abstract 1
- WEHWNAOGRSTTBQ-UHFFFAOYSA-N dipropylamine Chemical compound CCCNCCC WEHWNAOGRSTTBQ-UHFFFAOYSA-N 0.000 abstract 1
- ZOOODBUHSVUZEM-UHFFFAOYSA-N ethoxymethanedithioic acid Chemical compound CCOC(S)=S ZOOODBUHSVUZEM-UHFFFAOYSA-N 0.000 abstract 1
- 238000001125 extrusion Methods 0.000 abstract 1
- 239000011790 ferrous sulphate Substances 0.000 abstract 1
- 235000003891 ferrous sulphate Nutrition 0.000 abstract 1
- 239000011702 manganese sulphate Substances 0.000 abstract 1
- 235000007079 manganese sulphate Nutrition 0.000 abstract 1
- SQQMAOCOWKFBNP-UHFFFAOYSA-L manganese(II) sulfate Chemical compound [Mn+2].[O-]S([O-])(=O)=O SQQMAOCOWKFBNP-UHFFFAOYSA-L 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 150000002739 metals Chemical class 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- LGQLOGILCSXPEA-UHFFFAOYSA-L nickel sulfate Chemical compound [Ni+2].[O-]S([O-])(=O)=O LGQLOGILCSXPEA-UHFFFAOYSA-L 0.000 abstract 1
- DPBLXKKOBLCELK-UHFFFAOYSA-N pentan-1-amine Chemical compound CCCCCN DPBLXKKOBLCELK-UHFFFAOYSA-N 0.000 abstract 1
- 230000000704 physical effect Effects 0.000 abstract 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 abstract 1
- 239000004627 regenerated cellulose Substances 0.000 abstract 1
- 230000001172 regenerating effect Effects 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 229910052708 sodium Inorganic materials 0.000 abstract 1
- 239000011734 sodium Substances 0.000 abstract 1
- 239000000243 solution Substances 0.000 abstract 1
- 239000012991 xanthate Substances 0.000 abstract 1
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
- D01F2/06—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from viscose
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/06—Wet spinning methods
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
- D01F2/06—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from viscose
- D01F2/08—Composition of the spinning solution or the bath
- D01F2/10—Addition to the spinning solution or spinning bath of substances which exert their effect equally well in either
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Artificial Filaments (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US744068A US2535044A (en) | 1947-04-26 | 1947-04-26 | Spinning of viscose |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB654083A true GB654083A (en) | 1951-06-06 |
Family
ID=24991298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB602/48A Expired GB654083A (en) | 1947-04-26 | 1948-01-08 | Spinning of viscose |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2535044A (enrdf_load_stackoverflow) |
| BE (1) | BE515618A (enrdf_load_stackoverflow) |
| DE (1) | DE860389C (enrdf_load_stackoverflow) |
| FR (2) | FR64253E (enrdf_load_stackoverflow) |
| GB (1) | GB654083A (enrdf_load_stackoverflow) |
Families Citing this family (76)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL94986C (enrdf_load_stackoverflow) * | 1951-05-29 | |||
| BE516207A (enrdf_load_stackoverflow) * | 1951-12-13 | |||
| US2813038A (en) * | 1953-04-07 | 1957-11-12 | Courtaulds Ltd | Production of artificial filaments, threads and the like |
| NL82847C (enrdf_load_stackoverflow) * | 1953-06-25 | 1900-01-01 | ||
| NL96511C (enrdf_load_stackoverflow) * | 1953-09-16 | |||
| US2952508A (en) * | 1953-09-16 | 1960-09-13 | Rayonier Inc | Viscose process and products produced thereby |
| US2937922A (en) * | 1954-03-24 | 1960-05-24 | Rayonier Inc | Viscose process |
| US2792281A (en) * | 1953-09-21 | 1957-05-14 | American Viscose Corp | Viscose composition and method of spinning |
| US2792280A (en) * | 1953-09-21 | 1957-05-14 | American Viscose Corp | Viscose composition and method of spinning |
| US2792278A (en) * | 1953-09-21 | 1957-05-14 | American Viscose Corp | Viscose composition and method of spinning |
| US2792279A (en) * | 1953-09-21 | 1957-05-14 | American Viscose Corp | Viscose composition and method of spinning |
| NL182650B (nl) * | 1953-11-09 | Phillips Petroleum Co | Rotatiegietvormmengsel en werkwijze voor het rotatiegieten. | |
| BE537220A (enrdf_load_stackoverflow) * | 1954-05-12 | 1900-01-01 | ||
| US2852333A (en) * | 1954-05-21 | 1958-09-16 | Du Pont | Viscose spinning process |
| US2810658A (en) * | 1954-08-16 | 1957-10-22 | Du Pont | Process for spinning modified viscose solution |
| FR1111580A (fr) * | 1954-09-03 | 1956-03-01 | Comptoir Textiles Artificiels | Procédé de fabrication de filés de cellulose régénérée à haute ténacite |
| BE539699A (enrdf_load_stackoverflow) * | 1954-10-20 | |||
| US2904446A (en) * | 1954-11-03 | 1959-09-15 | American Viscose Corp | Process of producing viscose rayon |
| US2890132A (en) * | 1954-11-03 | 1959-06-09 | John A Howsmon | Producing all skin viscose rayon |
| US2845327A (en) * | 1954-11-03 | 1958-07-29 | American Viscose Corp | Method of producing viscose rayon |
| US2971816A (en) * | 1954-11-03 | 1961-02-14 | American Viscose Corp | Process of producing viscose rayon |
| US2908581A (en) * | 1954-11-03 | 1959-10-13 | American Viscose Corp | Producing all skin viscose rayon |
| US2906634A (en) * | 1954-11-03 | 1959-09-29 | American Viscose Corp | Method of producing viscose rayon |
| BE540589A (enrdf_load_stackoverflow) * | 1954-11-25 | 1900-01-01 | ||
| BE540588A (enrdf_load_stackoverflow) * | 1954-11-25 | 1900-01-01 | ||
| BE540585A (enrdf_load_stackoverflow) * | 1954-11-25 | |||
| BE540586A (enrdf_load_stackoverflow) * | 1954-11-25 | 1955-09-15 | ||
| US2953425A (en) * | 1954-11-25 | 1960-09-20 | American Enka Corp | Production of shaped objects from viscose |
| US2855321A (en) * | 1955-03-30 | 1958-10-07 | Du Pont | Viscose process |
| US2891836A (en) * | 1955-04-26 | 1959-06-23 | Du Pont | Viscose process |
| US2841462A (en) * | 1955-06-29 | 1958-07-01 | American Viscose Corp | Production of all skin rayon |
| US2840449A (en) * | 1955-06-29 | 1958-06-24 | American Viscose Corp | Method of producing all skin rayon |
| US2989410A (en) * | 1955-06-29 | 1961-06-20 | American Viscose Corp | All skin viscose rayon and method of preparing same |
| US2989366A (en) * | 1955-06-29 | 1961-06-20 | American Viscose Corp | Method of preparing all skin viscose |
| US2840448A (en) * | 1955-06-29 | 1958-06-24 | American Viscose Corp | Method of producing all skin rayon |
| US2841463A (en) * | 1955-06-29 | 1958-07-01 | American Viscose Corp | Process of producing all skin rayon |
| US2971817A (en) * | 1955-06-29 | 1961-02-14 | American Viscose Corp | Producing all skin rayon |
| US2890133A (en) * | 1955-06-29 | 1959-06-09 | American Viscose Corp | Process of producing all skin rayon |
| US2902381A (en) * | 1955-06-29 | 1959-09-01 | American Viscose Corp | Method of producing all skin rayon |
| US2890131A (en) * | 1955-06-29 | 1959-06-09 | American Viscose Corp | Method of producing all skin rayon |
| US2979376A (en) * | 1955-06-29 | 1961-04-11 | American Viscose Corp | Production of rayon |
| US2908582A (en) * | 1955-06-29 | 1959-10-13 | American Viscose Corp | Production of all skin rayon |
| DE1041638B (de) * | 1955-07-27 | 1958-10-23 | Du Pont | Verfahren zur Herstellung von Faeden aus regenerierter Cellulose |
| US2937070A (en) * | 1955-08-02 | 1960-05-17 | Du Pont | Viscose process |
| NL210229A (enrdf_load_stackoverflow) * | 1955-09-03 | 1900-01-01 | ||
| US2953468A (en) * | 1955-10-25 | 1960-09-20 | American Enka Corp | Production of shaped objects from viscose |
| US2926099A (en) * | 1955-12-05 | 1960-02-23 | American Viscose Corp | Preparing all skin viscose rayon |
| US2932578A (en) * | 1955-12-05 | 1960-04-12 | American Viscose Corp | Method of producing all skin rayon |
| US2919203A (en) * | 1955-12-05 | 1959-12-29 | American Viscose Corp | Producing all skin rayon |
| BE553231A (enrdf_load_stackoverflow) * | 1955-12-14 | |||
| US2970883A (en) * | 1956-01-16 | 1961-02-07 | American Enka Corp | Manufacture of viscose rayon |
| US2898222A (en) * | 1956-01-30 | 1959-08-04 | Int Paper Canada | Manufacture of regenerated cellulose |
| BE553819A (enrdf_load_stackoverflow) * | 1956-02-20 | 1900-01-01 | ||
| BE554986A (enrdf_load_stackoverflow) * | 1956-03-02 | 1900-01-01 | ||
| US2860480A (en) * | 1956-04-18 | 1958-11-18 | Du Pont | Regenerated cellulose structures and process for producing them |
| US2920973A (en) * | 1956-04-23 | 1960-01-12 | American Viscose Corp | Preparing viscose rayon |
| US2962341A (en) * | 1956-05-14 | 1960-11-29 | Du Pont | Viscose modification |
| US2893820A (en) * | 1956-07-16 | 1959-07-07 | Du Pont | Process for the production of regenerated cellulose filaments |
| BE553667A (enrdf_load_stackoverflow) * | 1956-07-25 | |||
| BE559502A (enrdf_load_stackoverflow) * | 1956-08-29 | |||
| US2962342A (en) * | 1956-12-17 | 1960-11-29 | American Viscose Corp | Process of producing viscose rayon |
| US2961289A (en) * | 1956-12-18 | 1960-11-22 | American Viscose Corp | Process of producing viscose rayon |
| US3182107A (en) * | 1956-12-18 | 1965-05-04 | Fmc Corp | Method of producing all-skin viscose rayon |
| GB879946A (en) * | 1957-02-11 | 1961-10-11 | Tatsuji Tachikawa | Process for the manufacture of highly polymerized viscose rayon |
| US2946782A (en) * | 1957-04-05 | 1960-07-26 | Tatsuji Tachikawa | Process for the manufacture of viscose rayon staple |
| US3007764A (en) * | 1957-10-01 | 1961-11-07 | Du Pont | Process of preparing viscose rayon |
| US2879170A (en) * | 1957-10-02 | 1959-03-24 | Du Pont | Chemical composition and process |
| US3009763A (en) * | 1958-04-08 | 1961-11-21 | American Viscose Corp | Process of producing all skin rayon |
| US3097414A (en) * | 1958-10-30 | 1963-07-16 | Woodell | |
| US3112986A (en) * | 1958-10-30 | 1963-12-03 | Beaunit Corp | Process for the production of crimpable regenerated cellulose fibers and yarn |
| US3050823A (en) * | 1958-10-30 | 1962-08-28 | Beaunit Mills Inc | Crimpable regenerated cellulose fibers and yarn |
| DE1144000B (de) * | 1958-12-13 | 1963-02-21 | Stockhausen & Cie Chem Fab | Verfahren zum Koagulieren von Viskose |
| US3018158A (en) * | 1959-05-05 | 1962-01-23 | Rayonier Inc | Viscose process |
| GB916318A (en) * | 1960-09-07 | 1963-01-23 | Courtaulds Ltd | Improvements in and relating to the production of regenerated cellulose filaments from viscose |
| US3531560A (en) * | 1968-10-28 | 1970-09-29 | Int Paper Canada | Spinning of viscose |
| CN116377607B (zh) * | 2023-04-17 | 2024-10-25 | 邯郸宏大化纤机械有限公司 | 一种双开盖式过丝通道 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1877933A (en) * | 1928-05-31 | 1932-09-20 | Ig Farbenindustrie Ag | Manufacture of artificial textiles |
| US1880514A (en) * | 1929-06-17 | 1932-10-04 | Eastman Kodak Co | Cellulose derivative products |
| US1984303A (en) * | 1932-10-04 | 1934-12-11 | American Bemberg Corp | Manufacture of artificial silk |
| US2069805A (en) * | 1934-09-15 | 1937-02-09 | Du Pont | Cellulosic structures and methods for producing same |
| BE419429A (enrdf_load_stackoverflow) * | 1935-02-16 | 1900-01-01 | ||
| US2310208A (en) * | 1938-10-07 | 1943-02-09 | North American Rayon Corp | Surface-active incrustation inhibitor |
| US2340377A (en) * | 1939-12-11 | 1944-02-01 | Graumann Erich | Process of making artificial fibers |
| US2364273A (en) * | 1941-11-22 | 1944-12-05 | Du Pont | Production of cellulosic structures |
-
0
- FR FR961352D patent/FR961352A/fr not_active Expired
- BE BE515618D patent/BE515618A/xx unknown
-
1947
- 1947-04-26 US US744068A patent/US2535044A/en not_active Expired - Lifetime
-
1948
- 1948-01-08 GB GB602/48A patent/GB654083A/en not_active Expired
- 1948-12-31 DE DEP28794D patent/DE860389C/de not_active Expired
-
1951
- 1951-04-14 FR FR64253D patent/FR64253E/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR961352A (enrdf_load_stackoverflow) | 1950-05-11 |
| US2535044A (en) | 1950-12-26 |
| DE860389C (de) | 1952-12-22 |
| FR64253E (fr) | 1955-11-09 |
| BE515618A (enrdf_load_stackoverflow) |
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