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Easy open envelope
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Patent number 8,113,417
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Issue date Feb 14, 2012
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Michael Stude
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Easy open envelope
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Patent number 7,178,713
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Issue date Feb 20, 2007
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Michael Stude
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Folded paper edge opening process
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Patent number 4,194,342
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Issue date Mar 25, 1980
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AES Technology Systems, Inc.
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Joseph Savit
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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3871573
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Patent number 3,871,573
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Issue date Mar 18, 1975
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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3853262
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Patent number 3,853,262
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Issue date Dec 10, 1974
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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3816213
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Patent number 3,816,213
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Issue date Jun 11, 1974
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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3708105
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Patent number 3,708,105
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Issue date Jan 2, 1973
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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3677460
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Patent number 3,677,460
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Issue date Jul 18, 1972
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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3593912
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Patent number 3,593,912
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Issue date Jul 20, 1971
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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3578791
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Patent number 3,578,791
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Issue date May 18, 1971
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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3411700
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Patent number 3,411,700
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Issue date Nov 19, 1968
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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3261539
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Patent number 3,261,539
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Issue date Jul 19, 1966
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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3117608
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Patent number 3,117,608
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Issue date Jan 14, 1964
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B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
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2482080
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Patent number 2,482,080
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Issue date Sep 13, 1949
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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2476740
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Patent number 2,476,740
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Issue date Jul 19, 1949
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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2410438
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Patent number 2,410,438
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Issue date Nov 5, 1946
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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2350802
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Patent number 2,350,802
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Issue date Jun 6, 1944
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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2335115
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Patent number 2,335,115
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Issue date Nov 23, 1943
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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2330045
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Patent number 2,330,045
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Issue date Sep 21, 1943
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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2301255
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Patent number 2,301,255
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Issue date Nov 10, 1942
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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2298616
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Patent number 2,298,616
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Issue date Oct 13, 1942
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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2251391
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Patent number 2,251,391
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Issue date Aug 5, 1941
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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2237085
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Patent number 2,237,085
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Issue date Apr 1, 1941
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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2219198
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Patent number 2,219,198
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Issue date Oct 22, 1940
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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1981440
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Patent number 1,981,440
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Issue date Nov 20, 1934
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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1977759
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Patent number 1,977,759
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Issue date Oct 23, 1934
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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1735273
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Patent number 1,735,273
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Issue date Nov 12, 1929
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL