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3400051
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Patent number 3,400,051
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Issue date Sep 3, 1968
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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3236173
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Patent number 3,236,173
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Issue date Feb 22, 1966
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A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
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3216345
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Patent number 3,216,345
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Issue date Nov 9, 1965
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C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
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2080287
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Patent number 2,080,287
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Issue date May 11, 1937
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C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
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2042284
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Patent number 2,042,284
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Issue date May 26, 1936
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C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...