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Self-inking stamping device
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Patent number 4,852,489
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Issue date Aug 1, 1989
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M&R Marking Systems, Inc.
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Alexander C. Wall
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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Self-inking stamping device
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Patent number 4,432,281
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Issue date Feb 21, 1984
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M & R Seal Press Co., Inc.
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Alexander C. Wall
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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Self-inking stamp
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Patent number D261006
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Issue date Sep 29, 1981
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M & R Seal Press Co., Inc.
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Alexander C. Wall
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D18 - Printing and office machinery