Printing frame

Details Printing frame Printing frame

1975-04-28

1976-12-07

Peters, Jr., Joseph F.

Photocopying

Contact printing

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

355 76, G03B 2720

Patent

active

039959554

ABSTRACT:
This invention relates to a printing frame for the exposure of printing plates comprising two closable components, flexible sheet means secured to one of said components and being adapted to press a printing plate and an original together and maintain them in close contact during exposure, and means for exerting air pressure on said flexible sheet means in order to press said printing plate and original together.

REFERENCES:
patent: 2929309 (1960-03-01), Young
patent: 3359879 (1967-12-01), Hamlin
patent: 3455634 (1969-07-01), Guffon
patent: 3604800 (1971-09-01), Jordan
patent: 3625611 (1971-12-01), Orr
patent: 3834815 (1974-09-01), Greig

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