US PATENT SUBCLASS 400 / 244
.~.~ Including ribbon-reversing indicator or device on spool or mount

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

191  DF  INCLUDING INTERPOSED INKING DEVICE (E.G., RIBBON) FOR RECORD-MEDIUM {15}
242  DF  .~ Ribbon spool or mount therefor {4}
244.~.~ Including ribbon-reversing indicator or device on spool or mount

DEFINITION

Classification: 400/244

Including ribbon-reversing indicator or device on spool or mount:

(under subclass 242) Subject matter wherein the cylindrical member is intended to be rotated in either of opposite directions depending on whether the ribbon is to be wound thereon or to be unwound therefrom, and wherein significance is attributed to a modification of such cylindrical member which either alerts the typist that a change in directional rotation of the member is desired, or which controls the mechanism for changing the directional rotation of the member.

SEE OR SEARCH THIS CLASS, SUBCLASS:

218, for a mechanism for moving a ribbon in either of opposite directions.