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Tube doffing and bundling method
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Patent number 3,941,639
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Issue date Mar 2, 1976
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Ernest J. Maroschak
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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3877859
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Patent number 3,877,859
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Issue date Apr 15, 1975
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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3870774
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Patent number 3,870,774
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Issue date Mar 11, 1975
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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3869236
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Patent number 3,869,236
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Issue date Mar 4, 1975
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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3865913
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Patent number 3,865,913
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Issue date Feb 11, 1975
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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3865912
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Patent number 3,865,912
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Issue date Feb 11, 1975
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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3857660
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Patent number 3,857,660
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Issue date Dec 31, 1974
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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3854855
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Patent number 3,854,855
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Issue date Dec 17, 1974
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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3850560
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Patent number 3,850,560
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Issue date Nov 26, 1974
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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3848036
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Patent number 3,848,036
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Issue date Nov 12, 1974
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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3846056
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Patent number 3,846,056
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Issue date Nov 5, 1974
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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3844698
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Patent number 3,844,698
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Issue date Oct 29, 1974
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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3834848
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Patent number 3,834,848
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Issue date Sep 10, 1974
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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3588952
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Patent number 3,588,952
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Issue date Jun 29, 1971
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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3520020
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Patent number 3,520,020
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Issue date Jul 14, 1970
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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3459841
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Patent number 3,459,841
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Issue date Aug 5, 1969
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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3112522
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Patent number 3,112,522
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Issue date Dec 3, 1963
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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2372917
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Patent number 2,372,917
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Issue date Apr 3, 1945
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...