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Duplexing paper handling system
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Patent number 4,506,881
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Issue date Mar 26, 1985
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International Business Machines Corporation
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Ronald E. Hunt
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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Replaceable ribbon cartridge
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Patent number 4,437,779
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Issue date Mar 20, 1984
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International Business Machines Corporation
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Willie Goff
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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Compact envelope handling device
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Patent number 4,371,157
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Issue date Feb 1, 1983
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International Business Machines Corporation
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Ronald E. Hunt
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Dictation machine or the like
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Patent number D242807
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Issue date Dec 21, 1976
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International Business Machines Corporation
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Ronald E. Hunt
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D26 - Lighting
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