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Valve and valve sealing member
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Patent number 4,513,946
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Issue date Apr 30, 1985
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Rockwell International Corporation
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Werner K. Priese
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Ball valve with compound closure movement
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Patent number 4,203,460
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Issue date May 20, 1980
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Hills-McCanna Company
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Werner K. Priese
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Pressure loaded sealing arrangement
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Patent number 4,044,994
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Issue date Aug 30, 1977
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Hills-McCanna Company
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Werner K. Priese
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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High pressure diaphragm valve
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Patent number 4,014,514
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Issue date Mar 29, 1977
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Hills-McCanna Company
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Werner K. Priese
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...