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Continuous celluloid twin screw extrusion process
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Patent number 9,539,752
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Issue date Jan 10, 2017
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General Dynamics Ordnance and Tactical Systems—Canada Valleyfield, Inc.
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Charles Dubois
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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2702231
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Patent number 2,702,231
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Issue date Feb 15, 1955
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D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
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2421391
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Patent number 2,421,391
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Issue date Jun 3, 1947
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D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
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2289520
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Patent number 2,289,520
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Issue date Jul 14, 1942
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D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
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2091969
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Patent number 2,091,969
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Issue date Sep 7, 1937
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D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
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2060016
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Patent number 2,060,016
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Issue date Nov 10, 1936
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D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
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1978741
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Patent number 1,978,741
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Issue date Oct 30, 1934
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D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
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1962139
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Patent number 1,962,139
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Issue date Jun 12, 1934
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D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
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1935637
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Patent number 1,935,637
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Issue date Nov 21, 1933
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D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
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1933204
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Patent number 1,933,204
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Issue date Oct 31, 1933
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D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
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1833955
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Patent number 1,833,955
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Issue date Dec 1, 1931
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D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
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1770108
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Patent number 1,770,108
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Issue date Jul 8, 1930
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D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
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1729628
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Patent number 1,729,628
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Issue date Oct 1, 1929
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D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
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1713289
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Patent number 1,713,289
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Issue date May 14, 1929
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D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
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1701543
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Patent number 1,701,543
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Issue date Feb 12, 1929
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D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
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1666049
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Patent number 1,666,049
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Issue date Apr 10, 1928
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D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
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1661736
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Patent number 1,661,736
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Issue date Mar 6, 1928
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D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
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1633292
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Patent number 1,633,292
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Issue date Jun 21, 1927
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D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
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1598972
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Patent number 1,598,972
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Issue date Sep 7, 1926
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D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
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1598949
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Patent number 1,598,949
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Issue date Sep 7, 1926
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D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
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1584005
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Patent number 1,584,005
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Issue date May 11, 1926
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D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
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1562076
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Patent number 1,562,076
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Issue date Nov 17, 1925
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D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
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1544812
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Patent number 1,544,812
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Issue date Jul 7, 1925
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D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
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1441204
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Patent number 1,441,204
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Issue date Jan 9, 1923
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D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
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1441203
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Patent number 1,441,203
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Issue date Jan 9, 1923
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D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
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1441205
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Patent number 1,441,205
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Issue date Jan 9, 1923
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D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING