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Valve
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Patent number 4,684,106
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Issue date Aug 4, 1987
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Nupro Company
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Terrence J. Kolenc
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Valve
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Patent number 4,606,374
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Issue date Aug 19, 1986
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Nupro Company
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Terrence J. Kolenc
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Pressure relief valve
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Patent number 4,530,373
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Issue date Jul 23, 1985
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Nupro Company
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Carl R. Bork
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Plug valve
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Patent number 4,262,880
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Issue date Apr 21, 1981
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Nupro Company
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Oliver L. Danko
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Fluid filter
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Patent number 4,028,254
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Issue date Jun 7, 1977
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Nupro Company
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Earl D. Shufflebarger
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL