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Connecting structure of metal plates
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Patent number 8,240,678
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Issue date Aug 14, 2012
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Japan Metal Gasket Co., Ltd.
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Kosaku Ueta
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Clinched double web grid tee
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Patent number 6,041,564
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Issue date Mar 28, 2000
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USG Interiors, Inc.
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Richard Shirey
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Rivet fastening apparatus and method
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Patent number 5,617,619
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Issue date Apr 8, 1997
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Gary A. Knudson
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Apparatus for forming a clinch joint
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Patent number 5,315,743
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Issue date May 31, 1994
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Tech-Line Engineering Co.
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Louis C. Schleicher
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Single station hemming tooling
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Patent number 4,928,388
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Issue date May 29, 1990
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Utica Enterprises, Inc.
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Ernest A. Dacey
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Clinching tool
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Patent number 4,905,362
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Issue date Mar 6, 1990
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REO Hydraulics Pierce and Form, Inc.
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Robert E. Obrecht
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Apparatus for forming joints
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Patent number 4,856,316
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Issue date Aug 15, 1989
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Weldex, Inc.
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Arthur L. Slasinski
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Clinching tool
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Patent number 4,825,525
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Issue date May 2, 1989
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Robert E. Obrecht
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Machine for making awnings
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Patent number 4,825,519
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Issue date May 2, 1989
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Supreme Aluminum Products
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Robert M. Henderson
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Sheet metal joining apparatus
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Patent number 4,658,502
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Issue date Apr 21, 1987
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Gerd-Jurgen Eckold
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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