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Toner metering apparatus
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Patent number 5,012,289
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Issue date Apr 30, 1991
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International Business Machines Corporation
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Charles S. Aldrich
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Reloadable ribbon cartridge
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Patent number 4,772,143
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Issue date Sep 20, 1988
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International Business Machines Corporation
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James A. Craft
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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Ribbon feed tension mechanism
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Patent number 4,661,004
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Issue date Apr 28, 1987
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International Business Machines Corporation
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Steven L. Applegate
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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Ribbon feed mode shift mechanism
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Patent number 4,353,658
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Issue date Oct 12, 1982
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International Business Machines Corporation
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James A. Craft
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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Ribbon cartridge loading mechanism
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Patent number 4,339,210
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Issue date Jul 13, 1982
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International Business Machines Corporation
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James A. Craft
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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Collator bins
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Patent number 3,957,264
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Issue date May 18, 1976
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International Business Machines Corporation
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Paul S. Bach
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL