US PATENT SUBCLASS 400 / 511.3
.~.~.~.~ Carbon paper rewound for retraction

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


400 /   HD   TYPEWRITING MACHINES

497  DF  WITH CONTROL OF "CARBON PAPER" FOR TYPING PLURAL SIMULTANEOUS COPIES BY SINGLE IMPRESSION (E.G., ON "MANIFOLD SET") {10}
508  DF  .~ Including spool or support for roll of carbon paper {4}
511  DF  .~.~ Feed mechanism for feed from roll of carbon paper {2}
511.2  DF  .~.~.~ With retraction of carbon paper for reuse thereof (e.g., by slidable carrier) {1}
511.3.~.~.~.~ Carbon paper rewound for retraction {1}
511.4  DF  .~.~.~.~.~> By driving carbon paper roll directly from platen (e.g., by endless band)

DEFINITION

Classification: 400/511.3

Carbon paper rewound for retraction:

(under subclass 511.2) Subject matter wherein said carbon paper that is drawn back in the second direction is coiled again onto the same coil from which it was unwound during the advancement in the first direction.