US PATENT SUBCLASS 400 / 692
.~.~ Having means facilitating interchange of parts

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

679  DF  MEANS AUXILIARY TO TYPEWRITING FUNCTION {12}
691  DF  .~ Frame, casing, or support for typewriter {3}
692.~.~ Having means facilitating interchange of parts

DEFINITION

Classification: 400/692

Having means facilitating interchange of parts:

(under subclass 691) Subject matter wherein the typewriter is one in which one or more of the elements thereof may be exchanged one for another, and wherein said frame structure is particularly arranged to effect such exchange of typewriter elements.