US PATENT SUBCLASS 400 / 247
.~ Means auxiliary to ribbon mechanism (e.g., shield, guide, etc.)

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}
247.~ Means auxiliary to ribbon mechanism (e.g., shield, guide, etc.) {3}
248  DF  .~.~> Including guide for ribbon {2}
249  DF  .~.~> Including indicator for depletion of ribbon (e.g., bell, sign, etc.)
250  DF  .~.~> Including tool for inserting ribbon

DEFINITION

Classification: 400/247

Means auxiliary to ribbon mechanism (e.g., shield, guide, etc.):

(under subclass 191) Subject matter wherein the transfer-medium* is a ribbon*, and wherein significance is attributed to a device used in conjunction with the ribbon, but which device does not itself effect the imprint of a character* or function* of the typewriter, or which device is not provided for in any of the subclasses indented under subclass 191.