IP Library › Granted Patent US 4,771,646
Granted Patent Utility
US 4,771,646 · App. 07/000,334

Rotating and indexing mechanism

Inventors: Michael RUGGIER, Sandy Cow, Robert O. Lilley
Patented Case View Patent ↗
Granted: Sep 20, 1988 Filed: Jan 5, 1987
Inventors
Michael RUGGIER
Sandy Cow
Robert O. Lilley
Assignee (at issue)
Vetco Gray, LLC

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Quick Facts
Patent No.
US 4,771,646
App. No.
07/000,334
Filed
1987-01-05
Granted
1988-09-20
Kind
A