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Dot matrix print head
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Patent number 4,781,477
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Issue date Nov 1, 1988
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NCR Corporation
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Hideo Nagasawa
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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Impact-type recording apparatus
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Patent number 4,744,684
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Issue date May 17, 1988
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Canon Kabushiki Kaisha
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Tomohiro Maekawa
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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Printing hammer assembly
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Patent number 4,619,536
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Issue date Oct 28, 1986
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Ricoh Company, Ltd.
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Takeshi Takemoto
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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Printing hammer rebound control
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Patent number 4,569,607
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Issue date Feb 11, 1986
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Ricoh Company, Ltd.
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Takeshi Takemoto
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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Wire matrix print head apparatus
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Patent number 4,561,790
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Issue date Dec 31, 1985
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International Business Machines Corporation
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Vaughn R. Evans
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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Adaptive print hammer damper
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Patent number 4,538,930
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Issue date Sep 3, 1985
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Xerox Corporation
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John C. Dunfield
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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Dot matrix print actuator
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Patent number 4,527,469
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Issue date Jul 9, 1985
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Dataproducts Corporation
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Peter H. Wolf
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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Free flight hammer for impact printer
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Patent number 4,401,026
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Issue date Aug 30, 1983
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Exxon Reserach and Engineering Co.
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W. Sumner Brown
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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Hammer bank assembly
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Patent number 4,395,945
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Issue date Aug 2, 1983
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Dataproducts Corporation
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Val K. Jezbera
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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Hammer bank assembly
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Patent number 4,373,440
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Issue date Feb 15, 1983
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Val K. Jezbera
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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Impact printer hammer assembly
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Patent number 4,239,401
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Issue date Dec 16, 1980
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Plessey Peripheral Systems
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John R. Veale
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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