US PATENT SUBCLASS 400 / 714
.~.~ For screening key-board

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}
713  DF  .~ Attachment for shielding or screening record-medium or typewriter (e.g., against wind, etc.) {1}
714.~.~ For screening key-board

DEFINITION

Classification: 400/714

For screening key-board:

(under subclass 713) Subject matter wherein the device covers the key-board* of a typewriter.

(1) Note. The purpose of the cover is usually to prevent the typist from seeing the key-board while learning the "touch" system of typing.