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Universal mill stand for forming tubes
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Patent number 5,685,188
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Issue date Nov 11, 1997
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Mannesmann Aktiengesellschaft
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Klaus Rehag
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Pilger tube rolling mill
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Patent number 4,386,512
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Issue date Jun 7, 1983
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Wean United, Inc.
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Klaus Rehag
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Mandrel holding and releasing means
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Patent number 4,149,396
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Issue date Apr 17, 1979
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Wean United, Inc.
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Hans Meurer
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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