US PATENT SUBCLASS 355 / 105
.~.~.~ Light lowered into vertical cylinder

Current as of: June, 1999
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355 /   HD   PHOTOCOPYING

78  DF  CONTACT PRINTING {15}
97  DF  .~ Machine (i.e., having at least partly automatic feed) {3}
104  DF  .~.~ With cylindrical or curved exposure station structure {3}
105.~.~.~ Light lowered into vertical cylinder

DEFINITION

Classification: 355/105

(under subclass 104) Subject matter wherein the exposure station comprises a vertical cylinder with exposure of the printing materials effected by the lowering of a light into the cylinder.

(1) Note. The inventions herein are representative of the older blue print machines.