IP Library › Granted Patent US 4,972,175
Granted Patent Utility
US 4,972,175 · App. 07/366,905

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Inventor: Hugh MacPherson
Patented Case View Patent ↗
Granted: Nov 20, 1990 Filed: Jun 15, 1989
Inventor
Hugh MacPherson

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Quick Facts
Patent No.
US 4,972,175
App. No.
07/366,905
Filed
1989-06-15
Granted
1990-11-20
Kind
A