US PATENT SUBCLASS 73 / 1.44
.~.~.~ Using antenna or radio frequency (RF)

Current as of: June, 1999
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73 /   HD   MEASURING AND TESTING

1.01  DF  INSTRUMENT PROVING OR CALIBRATING {13}
1.42  DF  .~ Timing apparatus (e.g., fuse, camera, or shutter) {2}
1.43  DF  .~.~ Chronometer (e.g., clock, watch, or watch unbalance) {5}
1.44.~.~.~ Using antenna or radio frequency (RF)

DEFINITION

Classification: 73/1.44

Using antenna or radio frequency (RF):

(under subclass 1.43) Subject matter wherein either (a) the apparatus for proving or calibrating the device or (b) the device being proven or calibrated either (1) includes a metallic device for transmitting or receiving electromagnetic waves (i.e., an antenna) or (2) utilizes a frequency lying in the range of frequencies, between about 3 kilohertz and 300 gigahertz, over which electromagnetic radiation is used in radio transmission (i.e., radio frequency).

SEE OR SEARCH CLASS

342, Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation), appropriate subclasses for

an antenna, per se.