IP Library › Granted Patent US 4,933,534
Granted Patent Utility
US 4,933,534 · App. 07/276,376

Electrical heater and plug

Inventors: Paul Alexander Cunningham, Frederick G. J. Grise
Patented Case View Patent ↗
Granted: Jun 12, 1990 Filed: Nov 23, 1988
Inventors
Paul Alexander Cunningham
Frederick G. J. Grise

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Quick Facts
Patent No.
US 4,933,534
App. No.
07/276,376
Filed
1988-11-23
Granted
1990-06-12
Kind
A