Circular photographic slide tray

Details Circular photographic slide tray Circular photographic slide tray

1976-03-08

1977-05-31

Stephan, Steven L.

Optics: image projectors

Slide transfer mechanism

Slides gripped or hooked

206565, 211 41, 206585, G03B 2300, B65D 134, A47G 1908

Patent

active

040266451

ABSTRACT:
A circular tray for photographic slide projectors wherein the tray is provided with slide holders that are capable of being repositioned, together with the slide thereof, in any position circumferentially of the tray.

REFERENCES:
patent: 2954033 (1960-09-01), Marsden
patent: 2983387 (1961-05-01), Klein
patent: 3081870 (1963-03-01), Plettner
patent: 3486818 (1969-12-01), Hoppmann et al.
patent: 3532421 (1970-10-01), Schlessel
patent: 3942639 (1976-03-01), Cournoyer et al.

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