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3867767
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Patent number 3,867,767
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Issue date Feb 25, 1975
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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3223030
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Patent number 3,223,030
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Issue date Dec 14, 1965
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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2423391
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Patent number 2,423,391
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Issue date Jul 1, 1947
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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1569296
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Patent number 1,569,296
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Issue date Jan 12, 1926
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS