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3469010
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Patent number 3,469,010
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Issue date Sep 23, 1969
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C07 - ORGANIC CHEMISTRY
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3393223
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Patent number 3,393,223
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Issue date Jul 16, 1968
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C07 - ORGANIC CHEMISTRY
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3140298
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Patent number 3,140,298
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Issue date Jul 7, 1964
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C07 - ORGANIC CHEMISTRY
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2773894
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Patent number 2,773,894
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Issue date Dec 11, 1956
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C07 - ORGANIC CHEMISTRY
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2392864
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Patent number 2,392,864
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Issue date Jan 15, 1946
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C07 - ORGANIC CHEMISTRY