IP Library › Granted Patent US 4,877,652
Granted Patent Utility
US 4,877,652 · App. 07/146,316

Washable mask process

Inventors: Robert D. Sparling, Gerard L. Vachon
Patented Case View Patent ↗
Granted: Oct 31, 1989 Filed: Jan 21, 1988
Inventors
Robert D. Sparling
Gerard L. Vachon
Assignee (at issue)
Davidson Textron, INC

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Quick Facts
Patent No.
US 4,877,652
App. No.
07/146,316
Filed
1988-01-21
Granted
1989-10-31
Kind
A