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Forming a bend in a corrugation
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Patent number 10,946,426
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Issue date Mar 16, 2021
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Gaztransport et Technigaz
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Olivier Perrot
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Architectural panel arching device
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Patent number 6,843,092
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Issue date Jan 18, 2005
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Crown-PN L.L.C.
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Percy Greenberg
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Method for bending a corrugated sheet
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Patent number 6,354,130
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Issue date Mar 12, 2002
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Cathy D. Santa Cruz
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Sheet metal bending machine
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Patent number 4,138,875
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Issue date Feb 13, 1979
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Davis; Arnold
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Peter E. Hooper
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Building method
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Patent number 3,967,430
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Issue date Jul 6, 1976
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Gary A. Knudson
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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3902288
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Patent number 3,902,288
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Issue date Sep 2, 1975
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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3842647
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Patent number 3,842,647
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Issue date Oct 22, 1974
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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3824664
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Patent number 3,824,664
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Issue date Jul 23, 1974
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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3771342
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Patent number 3,771,342
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Issue date Nov 13, 1973
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F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS
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3686920
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Patent number 3,686,920
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Issue date Aug 29, 1972
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F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS
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3395438
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Patent number 3,395,438
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Issue date Aug 6, 1968
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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2967560
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Patent number 2,967,560
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Issue date Jan 10, 1961
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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2775284
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Patent number 2,775,284
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Issue date Dec 25, 1956
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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1617069
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Patent number 1,617,069
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Issue date Feb 8, 1927
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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1434068
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Patent number 1,434,068
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Issue date Oct 31, 1922
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...