IP Library › Granted Patent US 4,681,781
Granted Patent Utility
US 4,681,781 · App. 06/830,858

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Inventors: Charles R. Murray, Ray E. Harrison
Patented Case View Patent ↗
Granted: Jul 21, 1987 Filed: Feb 19, 1986
Inventors
Charles R. Murray
Ray E. Harrison
Assignee (at issue)
C-I-L, Inc.

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Quick Facts
Patent No.
US 4,681,781
App. No.
06/830,858
Filed
1986-02-19
Granted
1987-07-21
Kind
A