IP Library › Granted Patent US 4,775,232
Granted Patent Utility
US 4,775,232 · App. 07/072,116

Catadioptric projection lantern

Inventors: Kenneth H. Fischbeck, Paul A. Hoisington
Patented Case View Patent ↗
Granted: Oct 4, 1988 Filed: Jul 10, 1987
Inventors
Kenneth H. Fischbeck
Paul A. Hoisington
Assignee (at issue)
Spectra Group Limited, Inc.

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Quick Facts
Patent No.
US 4,775,232
App. No.
07/072,116
Filed
1987-07-10
Granted
1988-10-04
Kind
A