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3883510
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Patent number 3,883,510
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Issue date May 13, 1975
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C07 - ORGANIC CHEMISTRY
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3790566
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Patent number 3,790,566
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Issue date Feb 5, 1974
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C07 - ORGANIC CHEMISTRY
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3780059
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Patent number 3,780,059
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Issue date Dec 18, 1973
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C07 - ORGANIC CHEMISTRY
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3775409
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Patent number 3,775,409
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Issue date Nov 27, 1973
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C07 - ORGANIC CHEMISTRY
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3723463
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Patent number 3,723,463
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Issue date Mar 27, 1973
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C07 - ORGANIC CHEMISTRY
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3657275
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Patent number 3,657,275
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Issue date Apr 18, 1972
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C07 - ORGANIC CHEMISTRY