IP Library › Granted Patent US 4,838,670
Granted Patent Utility
US 4,838,670 · App. 07/092,035

Projection lens for a projector

Inventors: Kiichirou Ueda, Norikazu Arai
Patented Case View Patent ↗
Granted: Jun 13, 1989 Filed: Sep 2, 1987
Inventors
Kiichirou Ueda
Norikazu Arai
Assignee (at issue)
Konishiroku Photo Industry Co., Ltd.

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Quick Facts
Patent No.
US 4,838,670
App. No.
07/092,035
Filed
1987-09-02
Granted
1989-06-13
Kind
A