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High temperature ball valve
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Patent number 4,286,614
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Issue date Sep 1, 1981
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ACF Industries, Incorporated
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Gary W. Kacal
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Spring assembly for floating seat ring
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Patent number 4,266,566
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Issue date May 12, 1981
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ACF Industries, Incorporated
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Gary W. Kacal
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Cam means for ball valve seat rings
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Patent number 4,262,691
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Issue date Apr 21, 1981
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ACF Industries, Incorporated
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Gary W. Kacal
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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