US PATENT SUBCLASS 400 / 206.3
.~.~.~ On plural coaxial spools

Current as of: June, 1999
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400 /   HD   TYPEWRITING MACHINES

191  DF  INCLUDING INTERPOSED INKING DEVICE (E.G., RIBBON) FOR RECORD-MEDIUM {15}
204  DF  .~ For typing plural copies simultaneously with ribbon(s) (e.g., duplicate typing) {2}
206  DF  .~.~ Using plural ribbons (e.g., additional ribbon(s) {4}
206.3.~.~.~ On plural coaxial spools

DEFINITION

Classification: 400/206.3

On plural coaxial spools:

(under subclass 206) Subject matter wherein ribbon*-receiving reels are provided to mount the ribbons on the typewriter, and wherein at least two of the reels are so mounted on the typewriter, as to have a common centerline about which the reels may rotate in paying-out or taking-up the ribbons.