Method and apparatus for changing photoprinting glass in product

Photocopying – Contact printing – Frames

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G03B 2704

Patent

active

057542791

ABSTRACT:
Apparatus for temporarily hinging the lower portion of oppositely disposed photoprinting plates to enable decoupling the hinged top portions of the photoprinting frames so that the photoprinting frames can be pivoted toward a horizontal position to easily facilitate replacement of the photoprinting glass plates in the photoprinting frames.

REFERENCES:
patent: 1338894 (1920-07-01), Younkin
patent: 2720146 (1955-07-01), Mears
patent: 2814975 (1957-08-01), Mears
patent: 3199430 (1965-08-01), Brown
patent: 5014087 (1991-05-01), Byers

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