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Elastomer for use with aqueous inks
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Patent number 5,116,902
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Issue date May 26, 1992
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Hewlett-Packard Company
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Charles B. Chapman
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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Method for operating a valve
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Patent number 4,928,111
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Issue date May 22, 1990
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Willett International Limited
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Robert L. Walton
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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Dual mode ink jet printer
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Patent number 4,864,328
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Issue date Sep 5, 1989
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Spectra, Inc.
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Kenneth H. Fischbeck
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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Automatic ink-jet marking system
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Patent number 4,769,650
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Issue date Sep 6, 1988
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Industrial Technology Research Institute
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Yu-Yin Peng
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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Ink jet pen
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Patent number 4,746,936
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Issue date May 24, 1988
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Canon Kabushiki Kaisha
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Hiroshi Takahashi
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES