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3923925
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Patent number 3,923,925
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Issue date Dec 2, 1975
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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3915912
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Patent number 3,915,912
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Issue date Oct 28, 1975
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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3878174
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Patent number 3,878,174
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Issue date Apr 15, 1975
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D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
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3842049
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Patent number 3,842,049
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Issue date Oct 15, 1974
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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3839497
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Patent number 3,839,497
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Issue date Oct 1, 1974
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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3794631
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Patent number 3,794,631
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Issue date Feb 26, 1974
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D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
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3657386
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Patent number 3,657,386
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Issue date Apr 18, 1972
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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3655821
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Patent number 3,655,821
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Issue date Apr 11, 1972
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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3597497
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Patent number 3,597,497
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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3544658
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Patent number 3,544,658
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Issue date Dec 1, 1970
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D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
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3374288
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Patent number 3,374,288
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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3318970
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Patent number 3,318,970
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3306953
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Patent number 3,306,953
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Issue date Feb 28, 1967
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3198852
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Patent number 3,198,852
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Patent number 3,044,987
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3001966
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Patent number 3,001,966
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Issue date Sep 26, 1961
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2993025
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Patent number 2,993,025
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Issue date Jul 18, 1961
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