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Chain replacement apparatus
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Patent number 11,298,741
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Issue date Apr 12, 2022
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Poul Chang Metal Industry Co., Ltd.
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Chia-Hao Huang
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Parts transfer and control circuit system
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Patent number 6,224,124
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Issue date May 1, 2001
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AMSTED Industries Incorporated
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Victor V. Vollrath
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Chain forming method and apparatus
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Patent number 4,682,467
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Issue date Jul 28, 1987
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Cooper Industries, Inc.
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Ronald G. Waltemyer
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Chain making apparatus
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Patent number 4,428,186
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Issue date Jan 31, 1984
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ESAB Aktiebolag
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Thomas Hedren
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Revolving chain links
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Patent number 4,158,288
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Issue date Jun 19, 1979
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Bulten-Kanthal AB
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Rolf Bergstrom
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Chain making apparatus
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Patent number 4,000,606
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Issue date Jan 4, 1977
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Elektriska Svetsningsaktiebolaget
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Sven-Erik Linden
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Chain making apparatus
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Patent number 3,945,198
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Issue date Mar 23, 1976
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Elektriska Svetsningsaktiebolaget
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Sven-Erik Linden
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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3838619
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Patent number 3,838,619
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Issue date Oct 1, 1974
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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3701253
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Patent number 3,701,253
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Issue date Oct 31, 1972
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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3640164
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Patent number 3,640,164
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Issue date Feb 8, 1972
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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3128028
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Patent number 3,128,028
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Issue date Apr 7, 1964
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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2063593
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Patent number 2,063,593
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Issue date Dec 8, 1936
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...