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3452650
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Patent number 3,452,650
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Issue date Jul 1, 1969
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B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
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2914409
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Patent number 2,914,409
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Issue date Nov 24, 1959
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A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
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2706933
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Patent number 2,706,933
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Issue date Apr 26, 1955
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B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
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2365838
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Patent number 2,365,838
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Issue date Dec 26, 1944
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A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES