US PATENT SUBCLASS 73 / 638
.~.~.~.~.~.~ Along cylindrical object

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}
638.~.~.~.~.~.~ Along cylindrical object

DEFINITION

Classification: 73/638

Along cylindrical object:

(under subclass 635) Subject matter wherein relative movement of the transducer lengthwise of a cylindrical body is provided.