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Pipe joining
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Patent number 9,481,024
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Issue date Nov 1, 2016
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Davor Petricio Yaksic
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Rolling mill stand
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Patent number 5,524,469
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Issue date Jun 11, 1996
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William L. Sherwood
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Casting rolling mill for wire
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Patent number 4,094,049
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Issue date Jun 13, 1978
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Friedrich Kocks GmbH
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Ali Bindernagel
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Issue date Mar 28, 1967
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...