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Brake mechanism for spool
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Patent number 4,422,592
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Issue date Dec 27, 1983
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Rennco Incorporated
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Jack G. Swope
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Imprinter
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Patent number 4,313,376
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Issue date Feb 2, 1982
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Rennco Incorporated
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Jack G. Swope
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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Manual bag sealer with lift bar
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Patent number 4,229,244
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Issue date Oct 21, 1980
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Rennco Incorporated
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Jack G. Swope
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL