IP Library › Granted Patent US 5,247,756
Granted Patent Utility
US 5,247,756 · App. 07/946,248

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Inventor: Robert M. Johnstone
Patented Case View Patent ↗
Granted: Sep 28, 1993 Filed: Sep 17, 1992
Inventor
Robert M. Johnstone

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Quick Facts
Patent No.
US 5,247,756
App. No.
07/946,248
Filed
1992-09-17
Granted
1993-09-28
Kind
A