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Shipping envelope
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Patent number 6,644,538
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Issue date Nov 11, 2003
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The Standard Register Company
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David H. Schnitzer
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B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
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Shipping envelope
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Patent number 6,152,357
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Issue date Nov 28, 2000
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The Standard Register Company
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David H. Schnitzer
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B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
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Easily feedable envelope construction
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Patent number 4,886,205
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Issue date Dec 12, 1989
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Uarco Incorporated
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David H. Schnitzer
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Fine tooth perforation for webs
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Patent number 4,745,835
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Issue date May 24, 1988
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Uarco Incorporated
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David H. Schnitzer
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B26 - HAND CUTTING TOOLS CUTTING SEVERING