IP Library Granted Patent US 4,270,743
Granted Patent Utility
US 4,270,743 · App. 05/920,364

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Inventor: Charles P. Crampton
Patented Case View Patent ↗
Granted: Jun 2, 1981 Filed: Jun 29, 1978
Inventor
Charles P. Crampton
Assignee (at issue)
The Hamilton Tool Company

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Quick Facts
Patent No.
US 4,270,743
App. No.
05/920,364
Filed
1978-06-29
Granted
1981-06-02
Kind
A