Richard S. Goodwin

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Stoke-On-Trent, GB

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Patents Grantslast 30 patents

Information Patent Grant
Wafer check valves
- Patent number 4,694,853
- Issue date Sep 22, 1987
- R. Goodwin International Ltd.
- Richard S. Goodwin
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...