Portable processing station

Details Portable processing station Portable processing station

1975-11-26

1977-05-31

Griffin, Donald A.

Photocopying

Projection printing and copying cameras

With developing

160267R, G03B 2732, A47H 300

Patent

active

040266494

ABSTRACT:
A portable processing station comprising an enclosure having a bottom wall, a top wall, a pair of side walls, a rear wall and a front wall defining an entrance opening, said walls being formed of strong, thin sheet material with integral flange means for joining adjacent ends of said walls forming light tight joints therebetween, a light tight entrance curtain for opening and closing said entrance and means for causing a flow of ventilating air through said enclosure when said entrance curtain is closed.

REFERENCES:
patent: 1270656 (1918-06-01), Pedo
patent: 1451159 (1923-04-01), Greene
patent: 1550237 (1925-08-01), Beckman
patent: 2270978 (1942-01-01), Swormstedt
patent: 3269265 (1966-08-01), Polland
patent: 3308714 (1967-03-01), Friedel
patent: 3421568 (1969-01-01), Youngs
patent: 3424530 (1969-01-01), Leonhart
patent: 3425171 (1969-02-01), Propst et al.
patent: 3751737 (1973-08-01), Mustee
patent: 3811767 (1974-05-01), Purnell
patent: 3870388 (1975-03-01), Lofgren

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