IP Library › Granted Patent US 4,616,987
Granted Patent Utility
US 4,616,987 · App. 06/745,053

Internal bore impression tool

Inventors: Charles L. Boyers, John W. Finlayson
Patented Case View Patent ↗
Granted: Oct 14, 1986 Filed: Jun 17, 1985
Inventors
Charles L. Boyers
John W. Finlayson
Assignee (at issue)
Vetco Offshore Industries, Inc.

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Quick Facts
Patent No.
US 4,616,987
App. No.
06/745,053
Filed
1985-06-17
Granted
1986-10-14
Kind
A