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Independent wiping of printhead
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Patent number 6,761,428
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Issue date Jul 13, 2004
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Hewlett-Packard Development Company, L.P.
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Manish Agarwal
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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Measuring pen-to-paper spacing
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Patent number 6,709,084
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Issue date Mar 23, 2004
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Hewlett-Packard Development Company, L.P.
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Michael Nordlund
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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Servicing method
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Patent number 6,619,780
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Issue date Sep 16, 2003
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Hewlett-Packard Development Company, L.P.
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Manish Agarwal
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS