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3922312
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Patent number 3,922,312
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Issue date Nov 25, 1975
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C07 - ORGANIC CHEMISTRY
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3914254
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Patent number 3,914,254
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Issue date Oct 21, 1975
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C07 - ORGANIC CHEMISTRY
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3830843
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Patent number 3,830,843
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Issue date Aug 20, 1974
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C07 - ORGANIC CHEMISTRY
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3755361
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Patent number 3,755,361
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Issue date Aug 28, 1973
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C07 - ORGANIC CHEMISTRY
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3683006
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Patent number 3,683,006
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Issue date Aug 8, 1972
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C07 - ORGANIC CHEMISTRY
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3592838
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Patent number 3,592,838
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Issue date Jul 13, 1971
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C07 - ORGANIC CHEMISTRY