IP Library › Granted Patent US 4,286,171
Granted Patent Utility
US 4,286,171 · App. 06/017,722

Optoelectric cross-point switch

Inventors: Elmer H. Hara, R. Ian MacDonald
Patented Case View Patent ↗
Granted: Aug 25, 1981 Filed: Mar 5, 1979
Inventors
Elmer H. Hara
R. Ian MacDonald
Assignee (at issue)
Canadian Patents & Dev. Limited

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Quick Facts
Patent No.
US 4,286,171
App. No.
06/017,722
Filed
1979-03-05
Granted
1981-08-25
Kind
A