Masking device for use in photographic printing

Details Masking device for use in photographic printing Masking device for use in photographic printing

1987-11-20

1989-02-21

Wintercorn, Richard A.

Photocopying

Contact printing

Frames

355 74, G03B 2900

Patent

active

048069833

ABSTRACT:
A masking device for use in photographic printing, disposed between a photographic printing light source and a lengthwise sheet of photosensitive medium and adapted to define the printing area, in which a pair of widthwise-end mask members are supported on a pair of moving bases capable of moving in the widthwise direction of the photosensitive medium so that the widthwise-end mask members can move toward or away from each other to a predetermined extent, thereby enabling printing of either of framed and non-framed images.

REFERENCES:
patent: 3737227 (1973-06-01), Harter et al.
patent: 4218133 (1980-08-01), Biedermann
patent: 4479713 (1984-10-01), Long
patent: 4568180 (1986-02-01), Mikio Kogane
patent: 4634268 (1987-01-01), Kogane

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