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Wedge driven pipe bending machine
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Patent number 8,511,123
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Issue date Aug 20, 2013
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CRC-Evans Pipeline International, Inc.
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Jeffrey C. Scoville
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Segmented pipe-bending die
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Patent number 6,523,389
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Issue date Feb 25, 2003
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Daniel D. Girdner
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Pipe bending apparatus
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Patent number 4,313,330
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Issue date Feb 2, 1982
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James D. Cummings
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Portable hot pipe bending apparatus
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Patent number 3,943,747
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Issue date Mar 16, 1976
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Tubeco, Inc.
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Allan B. Wesler
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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3851519
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Patent number 3,851,519
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Issue date Dec 3, 1974
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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3834210
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Patent number 3,834,210
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Issue date Sep 10, 1974
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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3335588
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Patent number 3,335,588
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Issue date Aug 15, 1967
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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3060587
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Patent number 3,060,587
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Issue date Oct 30, 1962
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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3009507
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Patent number 3,009,507
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Issue date Nov 21, 1961
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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2970633
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Patent number 2,970,633
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Issue date Feb 7, 1961
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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2771116
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Patent number 2,771,116
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Issue date Nov 20, 1956
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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2740452
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Patent number 2,740,452
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Issue date Apr 3, 1956
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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2740453
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Patent number 2,740,453
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Issue date Apr 3, 1956
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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2708471
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Patent number 2,708,471
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Issue date May 17, 1955
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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2697469
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Patent number 2,697,469
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Issue date Dec 21, 1954
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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2694434
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Patent number 2,694,434
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Issue date Nov 16, 1954
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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2589651
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Patent number 2,589,651
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Issue date Mar 18, 1952
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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2547870
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Patent number 2,547,870
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Issue date Apr 3, 1951
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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2500980
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Patent number 2,500,980
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Issue date Mar 21, 1950
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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2456468
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Patent number 2,456,468
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Issue date Dec 14, 1948
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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2433055
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Patent number 2,433,055
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Issue date Dec 23, 1947
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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2428764
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Patent number 2,428,764
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Issue date Oct 7, 1947
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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2347593
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Patent number 2,347,593
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Issue date Apr 25, 1944
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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2286893
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Patent number 2,286,893
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Issue date Jun 16, 1942
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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2273655
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Patent number 2,273,655
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Issue date Feb 17, 1942
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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1342564
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Patent number 1,342,564
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Issue date Jun 8, 1920
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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1290047
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Patent number 1,290,047
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Issue date Jan 7, 1919
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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1155042
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Patent number 1,155,042
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Issue date Sep 28, 1915
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...