US PATENT SUBCLASS 73 / 630
.~.~.~.~.~ Establishing resonance in a test body

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}
627  DF  .~.~.~ By reflected wave {2}
629  DF  .~.~.~.~ Having unitary sonic type transmitter-receiver transducer {2}
630.~.~.~.~.~ Establishing resonance in a test body

DEFINITION

Classification: 73/630

Establishing resonance in a test body:

(under subclass 629) Subject matter wherein resonance frequency of the test body is measured.