US PATENT SUBCLASS 73 / 639
.~.~.~.~.~.~ Transducer forms wheel or is within a wheel

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

570  DF  VIBRATION {10}
584  DF  .~ By mechanical waves {13}
596  DF  .~.~ Beamed {10}
632  DF  .~.~.~ Sonic wave transmitter or receiver transducer {4}
633  DF  .~.~.~.~ Having transducer scanning means {4}
635  DF  .~.~.~.~.~ Rolling contact {4}
639.~.~.~.~.~.~ Transducer forms wheel or is within a wheel

DEFINITION

Classification: 73/639

Transducer forms wheel or is within a wheel:

(under subclass 635) Subject matter wherein the transducer is shaped in the form of a wheel or is mounted within a wheel but does not rotate with the wheel.