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3077451
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Patent number 3,077,451
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Issue date Feb 12, 1963
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C07 - ORGANIC CHEMISTRY
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3063943
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Patent number 3,063,943
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Issue date Nov 13, 1962
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C07 - ORGANIC CHEMISTRY
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3058912
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Patent number 3,058,912
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Issue date Oct 16, 1962
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C07 - ORGANIC CHEMISTRY
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3036972
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Patent number 3,036,972
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Issue date May 29, 1962
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C07 - ORGANIC CHEMISTRY
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2786812
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Patent number 2,786,812
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Issue date Mar 26, 1957
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C07 - ORGANIC CHEMISTRY