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Fluid check valve
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Patent number 5,819,790
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Issue date Oct 13, 1998
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Goodwin International Limited
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James Nicholas Cooper
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Dual plate check valve
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Patent number 5,711,343
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Issue date Jan 27, 1998
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Goodwin International Limited
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Kim Stuart Beckett
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Plates for wafer check valves
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Patent number 5,392,810
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Issue date Feb 28, 1995
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Goodwin International Limited
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James N. Cooper
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Wafer check valves
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Patent number 4,694,853
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Issue date Sep 22, 1987
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R. Goodwin International Ltd.
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Richard S. Goodwin
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Fluid/fluid separators
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Patent number 4,666,476
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Issue date May 19, 1987
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R. Goodwin International Limited
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Thomas S. Reeve
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E21 - EARTH DRILLING MINING
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Agitating particulate solids
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Patent number 4,650,342
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Issue date Mar 17, 1987
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R. Goodwin International Ltd.
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John Goodwin
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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74585073 - GOODWIN
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Serial number 74585073
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Registration number 2010766
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Filing date Oct 13, 1994
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GOODWIN INTERNATIONAL LIMITED
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6 - Common metals and their alloys