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1970-07-27 |
1973-04-03 |
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1970-12-28 |
1974-03-26 |
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1972-04-28 |
1980-01-01 |
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Method for producing hollow fibers of acrylonitrile polymers for ultrafilter
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1972-04-28 |
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Hollow fibres of acrylonitrile polymers for use as an ultrafitter and method for producing the same
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1973-01-24 |
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1973-03-27 |
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1973-09-03 |
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1973-11-26 |
1976-02-24 |
Standard Oil Company |
Process for forming hollow fibers
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1974-08-14 |
1980-06-24 |
Monsanto Company |
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1974-08-14 |
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1975-02-15 |
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1975-03-27 |
1978-11-28 |
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Process for preparing hollow fiber having selective gas permeability
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1975-05-01 |
1977-07-12 |
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1975-06-04 |
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Process for preparing fibrous materials by wet method
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1975-07-31 |
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Process for preparing film by wet method
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1975-10-03 |
1977-04-26 |
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1975-12-29 |
1980-05-08 |
Nippon Zeon Co |
Hollow fibres and methods of manufacturing such fibres
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1976-10-05 |
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1977-06-30 |
1983-05-24 |
Nippon Zeon Co., Ltd. |
Method of manufacturing hollow fiber
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1978-04-03 |
1979-11-02 |
Japan Exlan Co Ltd |
Procede de production de membranes acrylonitriliques de separation
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1978-05-02 |
1979-11-13 |
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Aromatic polysulfone hollow fiber semipermeable membrane
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1978-06-06 |
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1978-09-21 |
1980-04-03 |
Akzo Gmbh |
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1978-10-12 |
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1978-10-23 |
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Process for producing polyacrylonitrile reverse osmotic membranes
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1982-07-01 |
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1987-07-21 |
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1988-04-13 |
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