Lens support for slide projector

Details Lens support for slide projector Lens support for slide projector

1978-02-27

1981-03-31

Kemper, Catherine E.

Photography and optical equipment

Projector or viewer

With provision for transparency magazine

D1602

Patent

active

D02587386

REFERENCES:
patent: 3917390 (1975-11-01), Wenderoth
patent: 3981574 (1976-09-01), Jesensky et al.

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