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Feeding mechanism
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Patent number 4,799,663
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Issue date Jan 24, 1989
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G.B.R. Ltd.
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Roman M. Golicz
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Mechanism of making an envelope
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Patent number 4,343,129
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Issue date Aug 10, 1982
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G. B. R., Ltd.
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William H. Gunther
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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Folding mechanism
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Patent number 4,179,111
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Issue date Dec 18, 1979
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G. B. R., Ltd.
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William H. Gunther
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES