US PATENT SUBCLASS 455 / 87
.~.~.~ Tunable or variable

Current as of: June, 1999
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73  DF  TRANSMITTER AND RECEIVER AT SAME STATION (E.G., TRANSCEIVER) {9}
84  DF  .~ With a common signal processing stage {2}
86  DF  .~.~ Transmitter oscillator used as local oscillator {1}
87.~.~.~ Tunable or variable

DEFINITION

Classification: 455/87

Tunable or variable:

(under subclass 86) Subject matter where the frequency of the local oscillator is variable or changeable.