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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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Rotary actuator
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Patent number 4,044,631
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Issue date Aug 30, 1977
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Whitney Research Tool Company
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Stephen Matousek
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Ball valve stem guide
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Patent number 4,026,516
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Issue date May 31, 1977
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Whitey Research Tool Co.
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Stephen Matousek
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Operating handle
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Patent number 4,018,537
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Issue date Apr 19, 1977
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Whitey Research Tool Co.
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Ulrich H. Koch
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G05 - CONTROLLING REGULATING
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Adaptor plate
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Patent number D243655
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Issue date Mar 15, 1977
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Whitey Research Tool Co.
-
Stephen Matousek
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D08 - Tools and hardware
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Fluid system device
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Patent number 3,981,482
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Issue date Sep 21, 1976
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Whitey Research Tool Co.
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Francis J. Callahan
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Fluid system device
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Patent number 3,954,251
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Issue date May 4, 1976
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Whitey Research Tool Co.
-
Francis J. Callahan
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...