US PATENT SUBCLASS 340 / 309
.~.~.~ With make and break wheel

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


340 /   HD   COMMUNICATIONS: ELECTRICAL

286.01  DF  SYSTEMS {24}
287  DF  .~ Signal box type (e.g., to call messenger, plural fire alarm boxes) {11}
307  DF  .~.~ Transmitters {2}
309.~.~.~ With make and break wheel

DEFINITION

Classification: 340/309

(under subclass 307) Subject matter having a rotary make and break wheel.

SEE OR SEARCH CLASS

341, Coded Data Generation or Conversion,

16, and 17 for a pulse code transmitter having a rotary make and break wheel.