US PATENT SUBCLASS 345 / 172
.~.~ Having programmable function key

Current as of: June, 1999
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345 /   HD   COMPUTER GRAPHICS PROCESSING, OPERATOR INTERFACE PROCESSING, AND SELECTIVE VISUAL DISPLAY SYSTEMS

156  DF  DISPLAY PERIPHERAL INTERFACE INPUT DEVICE {8}
168  DF  .~ Including keyboard {4}
172.~.~ Having programmable function key

DEFINITION

Classification: 345/172

Having programmable function key:

(under subclass 168) Subject matter wherein the keyboard includes a specific key for performing specific functions assigned by a program.

SEE OR SEARCH CLASS

708, Electrical Computers: Arithmetic Processing and Calculating,

144, for a user definable key in a calculator.