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Return biller envelope book
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Patent number 4,454,980
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Issue date Jun 19, 1984
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Oliver Poehler
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Double envelope and method of making same
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Patent number 4,411,643
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Issue date Oct 25, 1983
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Berlin & Jones Company, Inc.
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Richard L. Higginson
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B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
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3655121
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Patent number 3,655,121
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Issue date Apr 11, 1972
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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512505
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Patent number 512,505
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Issue date Jan 9, 1894
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B26 - HAND CUTTING TOOLS CUTTING SEVERING
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212268
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Patent number 212,268
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Issue date Feb 11, 1879
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B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD