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Adjustable anvil roll
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Patent number 4,455,903
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Issue date Jun 26, 1984
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Preston Engravers, Inc.
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Martin Kesten
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B26 - HAND CUTTING TOOLS CUTTING SEVERING
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Fan folding apparatus
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Patent number D260778
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Issue date Sep 15, 1981
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Preston Engravers, Inc.
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Richard L. Edwards
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D18 - Printing and office machinery
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Adjustable eccentric
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Patent number 4,159,655
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Issue date Jul 3, 1979
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Preston Engravers, Inc.
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Arthur R. Johnson
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Resilient plate clamping means
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Patent number 4,143,597
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Issue date Mar 13, 1979
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Preston Engravers, Inc.
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Martin Kesten
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS