US PATENT SUBCLASS 333 / 223
.~.~ With tuning

Current as of: June, 1999
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333 /   HD   WAVE TRANSMISSION LINES AND NETWORKS

219  DF  RESONATORS (DISTRIBUTED PARAMETER TYPE) {7}
222  DF  .~ Coaxial or shielded {1}
223.~.~ With tuning {1}
224  DF  .~.~.~> Having movable element {2}

DEFINITION

Classification: 333/223

With tuning:

(under subclass 222) Subject matter wherein the resonator has means which can be adjusted to resonate or operate at a specified frequency.