Viewer for X-ray and like films

Details Viewer for X-ray and like films Viewer for X-ray and like films

1984-07-27

1985-04-16

Mancene, Gene

Card, picture, or sign exhibiting

Photographic transparency viewer, e.g., x-ray viewer

40471, 40387, 401522, G02B 2702

Patent

active

045107084

ABSTRACT:
A viewing device for X-ray films or the like automatically masks the areas of the viewing screen not in registry with the film to be viewed responsive to the insertion of a film. The device includes a dimension sensing mechanism which aligns a selected mask with a positioned film automatically in accordance with the sensed dimension.

REFERENCES:
patent: 2436162 (1948-02-01), Cadenas
patent: 2516270 (1950-07-01), Swain
patent: 2534637 (1950-12-01), Sussin
patent: 2754605 (1956-07-01), Berkeley
patent: 2800733 (1957-07-01), Chevillon
patent: 4164822 (1979-08-01), Batton
patent: 4267489 (1981-05-01), Morohashi

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