US PATENT SUBCLASS 400 / 640
.~.~.~ With cooperating scale

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

578  DF  SHEET OR WEB (E.G., RECORD-MEDIUM FEEDING MECHANISM) {13}
634  DF  .~ Including friction-feed means (e.g., band) {2}
636  DF  .~.~ By roller couple (e.g., rotatable pinch rollers, etc.) {8}
640.~.~.~ With cooperating scale

DEFINITION

Classification: 400/640

With cooperating scale:

(under subclass 636) Subject matter wherein the roller couple feed means is associated with a measuring instrument that is calibrated in units corresponding to character-space* distances.