IP Library › Granted Patent US 4,330,274
Granted Patent Utility
US 4,330,274 · App. 06/248,971

Lighting system for a dental handpiece

Inventors: Joshua Friedman, Maurice F. Zetena, Jr.
Patented Case View Patent ↗
Granted: May 18, 1982 Filed: Mar 30, 1981
Inventors
Joshua Friedman
Maurice F. Zetena, Jr.

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Quick Facts
Patent No.
US 4,330,274
App. No.
06/248,971
Filed
1981-03-30
Granted
1982-05-18
Kind
A