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Ternary gas plasma welding torch
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Patent number 5,399,831
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Issue date Mar 21, 1995
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The United States of America as represented by the Administrator, National Ae...
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William F. McGee
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H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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Plasma arc welding weld imaging
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Patent number 5,329,089
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Issue date Jul 12, 1994
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The United States of America as represented by the United States National Aer...
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William F. McGee
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Gas arc constriction for plasma arc welding
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Patent number 5,302,804
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Issue date Apr 12, 1994
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The United States of America as represented by the administrator of the Natio...
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William F. McGee
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H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR