IP Library › Granted Patent US 4,846,441
Granted Patent Utility
US 4,846,441 · App. 07/209,109

Methods and apparatus for adjusting a valve closure member

Inventors: William B. Scobie, Douglas G. Calvin
Patented Case View Patent ↗
Granted: Jul 11, 1989 Filed: Jun 20, 1988
Inventors
William B. Scobie
Douglas G. Calvin
Assignee (at issue)
Keystone International

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Quick Facts
Patent No.
US 4,846,441
App. No.
07/209,109
Filed
1988-06-20
Granted
1989-07-11
Kind
A