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Ribbon cassette for a printer
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Patent number 5,383,733
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Issue date Jan 24, 1995
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Summagraphics Corporation
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Charles D. Zinsmeyer
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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File box for video cassettes
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Patent number 5,238,112
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Issue date Aug 24, 1993
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Pelikan, Inc.
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Carl D. Massey
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Ribbon cartridge
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Patent number 5,131,769
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Issue date Jul 21, 1992
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Pelikan, Inc.
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Bruce S. Jones
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS