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Plasma perforation
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Patent number 9,622,509
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Issue date Apr 18, 2017
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Tannpapier GmbH
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Michael Lindner
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Conductor cutting method and coil parts
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Patent number 5,455,389
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Issue date Oct 3, 1995
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Matsushita Electric Industrial Co., Ltd.
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Tosiaki Hirose
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Photochemical cutting of fabrics
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Patent number 5,367,141
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Issue date Nov 22, 1994
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The United States of America as represented by the United States Department o...
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Martin S. Piltch
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3761675
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Patent number 3,761,675
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Issue date Sep 25, 1973
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3749878
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Patent number 3,749,878
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Issue date Jul 31, 1973
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B28 - WORKING CEMENT, CLAY, OR STONE
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3597578
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Patent number 3,597,578
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Issue date Aug 3, 1971
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B28 - WORKING CEMENT, CLAY, OR STONE