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2860553
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Patent number 2,860,553
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Issue date Nov 18, 1958
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B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
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2722870
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Patent number 2,722,870
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Issue date Nov 8, 1955
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B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
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2164935
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Patent number 2,164,935
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Issue date Jul 4, 1939
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B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
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2095139
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Patent number 2,095,139
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Issue date Oct 5, 1937
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B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD