William C. Sylvester

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Crockett, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Lockable sealer for end of threaded pipe
- Patent number 5,201,201
- Issue date Apr 13, 1993
- William C. Sylvester
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...