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Filter element manufacturing method
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Patent number 5,543,007
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Issue date Aug 6, 1996
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Nippondenso Co. Ltd.
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Takanari Takagaki
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B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
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Winding of uniform diameter tubes
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Patent number 4,095,512
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Issue date Jun 20, 1978
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Arrow Paper Products Company
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Martin H. Stark
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B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
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3765308
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Patent number 3,765,308
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Issue date Oct 16, 1973
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B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
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3665818
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Patent number 3,665,818
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Issue date May 30, 1972
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B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
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3665819
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Patent number 3,665,819
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Issue date May 30, 1972
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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3244379
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Patent number 3,244,379
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Issue date Apr 5, 1966
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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2798678
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Patent number 2,798,678
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Issue date Jul 9, 1957
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2789484
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Patent number 2,789,484
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Issue date Apr 23, 1957
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B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
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2779547
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Patent number 2,779,547
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Issue date Jan 29, 1957
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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2697386
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Patent number 2,697,386
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Issue date Dec 21, 1954
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B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
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2442856
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Patent number 2,442,856
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Issue date Jun 8, 1948
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B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
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2292402
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Patent number 2,292,402
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Issue date Aug 11, 1942
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B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
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2280970
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Patent number 2,280,970
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Issue date Apr 28, 1942
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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2080619
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Patent number 2,080,619
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Issue date May 18, 1937
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B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
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2009465
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Patent number 2,009,465
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Issue date Jul 30, 1935
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL