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Folding keyboard
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Patent number 6,793,421
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Issue date Sep 21, 2004
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International Business Machines Corporation
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Travis Baldwin
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G06 - COMPUTING CALCULATING COUNTING
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Desktop personal computer
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Patent number D391236
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Issue date Feb 24, 1998
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International Business Machines Corporation
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Susan Sommers Moffatt
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D14 - Recording, communication, or information retrieval equipment
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Mainframe multiprocessor
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Patent number D340231
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Issue date Oct 12, 1993
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International Business Machines Corporation
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Robert V. Jones
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D14 - Recording, communication, or information retrieval equipment
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Mainframe computer
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Patent number D334564
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Issue date Apr 6, 1993
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International Business Machines Corporation
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Michael Basara
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D14 - Recording, communication, or information retrieval equipment
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