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3804891
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Patent number 3,804,891
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Issue date Apr 16, 1974
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C07 - ORGANIC CHEMISTRY
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3597362
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Patent number 3,597,362
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Issue date Aug 3, 1971
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C07 - ORGANIC CHEMISTRY
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3470103
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Patent number 3,470,103
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Issue date Sep 30, 1969
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C07 - ORGANIC CHEMISTRY
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3442815
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Patent number 3,442,815
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Issue date May 6, 1969
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C07 - ORGANIC CHEMISTRY
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3400080
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Patent number 3,400,080
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Issue date Sep 3, 1968
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C07 - ORGANIC CHEMISTRY
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3399137
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Patent number 3,399,137
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Issue date Aug 27, 1968
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C07 - ORGANIC CHEMISTRY
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2268347
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Patent number 2,268,347
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Issue date Dec 30, 1941
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C07 - ORGANIC CHEMISTRY