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3871639
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Issue date Mar 18, 1975
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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3860474
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Patent number 3,860,474
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Issue date Jan 14, 1975
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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3565722
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Patent number 3,565,722
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Issue date Feb 23, 1971
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B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
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3476632
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Patent number 3,476,632
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Issue date Nov 4, 1969
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B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
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3457131
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Patent number 3,457,131
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Issue date Jul 22, 1969
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B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
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3379602
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Patent number 3,379,602
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Issue date Apr 23, 1968
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B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
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2547508
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Patent number 2,547,508
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Issue date Apr 3, 1951
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B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
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2525612
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Patent number 2,525,612
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Issue date Oct 10, 1950
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B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
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2382877
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Patent number 2,382,877
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Issue date Aug 14, 1945
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B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
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2275064
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Patent number 2,275,064
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Issue date Mar 3, 1942
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B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
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1564374
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Patent number 1,564,374
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Issue date Dec 8, 1925
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B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD