US PATENT SUBCLASS 73 / 623
.~.~.~.~.~.~ Scan from within 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}
618  DF  .~.~.~ Measuring or testing system having scanning means {2}
620  DF  .~.~.~.~ By reflected wave {4}
622  DF  .~.~.~.~.~ Of tubing, vessel, or cylindrical object {1}
623.~.~.~.~.~.~ Scan from within object

DEFINITION

Classification: 73/623

Scan from within object:

(under subclass 622) Subject matter wherein the scanning is within a pipe or cylindrical vessel.