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System for plugging tubes by welding
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Patent number 4,262,187
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Issue date Apr 14, 1981
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Combustion Engineering, Inc.
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Dennis E. Savor
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Tube plug
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Patent number 4,178,966
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Issue date Dec 18, 1979
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Combustion Engineering, Inc.
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Dennis E. Savor
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F28 - HEAT EXCHANGE IN GENERAL
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Automatic seal welding apparatus
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Patent number 4,081,650
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Issue date Mar 28, 1978
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Combustion Engineering, Inc.
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John Joseph Barger
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Tube removal method
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Patent number 3,986,245
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Issue date Oct 19, 1976
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Combustion Engineering, Inc.
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Dennis Edward Savor
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR