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Toner cartridge converter
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Patent number 6,957,027
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Issue date Oct 18, 2005
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Hewlett-Packard Development Company, L.P.
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Howard Hooper
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Toner cartridge converter
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Patent number 6,654,577
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Issue date Nov 25, 2003
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Hewlett-Packard Development Company, L.P.
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Howard Hooper
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Refillable toner cartridge
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Patent number 5,594,535
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Issue date Jan 14, 1997
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Hewlett-Packard Company
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Richard F. Beaufort
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY