Precision planar positioning device

Details Precision planar positioning device Precision planar positioning device

1981-11-23

1983-02-08

Wintercorn, Richard A.

Photocopying

Projection printing and copying cameras

Identifying, composing, or selecting

354 4, 355 54, 355 86, 355 95, G03B 2752, G03B 2704

Patent

active

043726771

ABSTRACT:
A device for the precision positioning of substantially planar materials, especially for use in the lithographic arts. In particular, photographic masks are precisely located for superimposition on photosensitive films or lithographic printing plates held within the frame of a plate making machine.

REFERENCES:
patent: 3052174 (1962-09-01), Berger
patent: 3147683 (1964-09-01), Hulen
patent: 3150582 (1964-09-01), Gerson
patent: 3484166 (1969-12-01), Gerson
patent: 3586437 (1971-06-01), Dietz et al.
patent: 3639056 (1972-02-01), Gerson
patent: 3752578 (1973-08-01), Allan
patent: 3873202 (1975-03-01), Inoue
patent: 3905699 (1975-09-01), Szabo
TRW Optron Product Bulletins, Nos. 103, 112, 1084 and 2047.

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