Printing machines used in photolithography, repro work, screen p

Details Printing machines used in photolithography, repro work, screen p Printing machines used in photolithography, repro work, screen p

1982-05-13

1984-07-17

Wintercorn, Richard A.

Photocopying

Contact printing

Fluid pressure retention of carrier and receiver in exposure...

355 76, G03B 2720

Patent

active

044602723

ABSTRACT:
An improvement in printing machines used in photolithography, repro work, screen printing, and bromography having a glass plate and a vacuum table between which, for example, a film containing the drawing to be reproduced and the plate to be engraved are laid, after which the air between the superimposed plates is sucked out by means of a vacuum pump, characterized by the fact that the underside of the glass plate has a finely-grained rough surface, across which the air is able to escape on all sides.

REFERENCES:
patent: 3507593 (1970-04-01), McTeague
patent: 3751250 (1973-08-01), Moscony et al.

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