Rear screen motion picture projector

Details Rear screen motion picture projector Rear screen motion picture projector

1978-04-12

1981-01-13

Kemper, Catherine E.

Photography and optical equipment

Projector or viewer

With provision for transparency magazine

D1602

Patent

active

D02578522

REFERENCES:
patent: D224447 (1972-07-01), Catalano et al.
patent: D228029 (1973-07-01), Conner et al.
patent: 3947187 (1976-03-01), Murray, Jr.

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