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Stroke typing system
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Patent number 4,891,786
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Issue date Jan 2, 1990
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Eric P. Goldwasser
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G06 - COMPUTING CALCULATING COUNTING
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Real-time word typewriter
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Patent number 4,804,279
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Issue date Feb 14, 1989
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Special Systems Industry B.V.
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Nicolaas M. Berkelmans
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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Computerized printing system
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Patent number 4,692,042
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Issue date Sep 8, 1987
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Digitext, Inc.
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William A. Cuff
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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Computerized printing system
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Patent number 4,632,578
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Issue date Dec 30, 1986
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Digitext, Inc.
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William A. Cuff
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G06 - COMPUTING CALCULATING COUNTING
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Digital data recorder
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Patent number 4,205,351
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Issue date May 27, 1980
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Stenograph Corporation
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Richard A. Michals
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS