US PATENT SUBCLASS 342 / 440
.~.~.~.~ Including a goniometer

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

Internet Version by PATENTEC © 1999      Terms of Use


342 /   HD   COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION)

350  DF  DIRECTIVE {10}
385  DF  .~ Beacon or receiver {2}
417  DF  .~.~ Direction-finding receiver only {14}
432  DF  .~.~.~ With plural fixed antenna pattern comparing {5}
440.~.~.~.~ Including a goniometer

DEFINITION

Classification: 342/440

Including a goniometer:

(under subclass 432) Subject matter wherein means receiving energy from two or more antennas having fixed angularly disposed directional characteristics, sets up, adjacent an orientable pick up device, singularly disposed fields whose resultant field bears a fix angular relation to the direction of the received energy.

SEE OR SEARCH CLASS

336, Inductor Devices,

115+, and the subclasses specified in the Notes thereto for the structure of transformers with relatively movable coils.