William F. Williams

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Newport, GB

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Patents Grantslast 30 patents

Information Patent Grant
Fluid flow control valve, principally of the ball or plug type
- Patent number 4,332,370
- Issue date Jun 1, 1982
- Serck Industries, Limited
- William F. Williams
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...