US PATENT SUBCLASS 33 / 731
.~.~.~.~.~ Including seal

Current as of: June, 1999
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33 /   HD   GEOMETRICAL INSTRUMENTS

700  DF  DISTANCE MEASURING {13}
713  DF  .~ Sounding type {6}
721  DF  .~.~ For nongaseous material {1}
722  DF  .~.~.~ Liquid (e.g. dipstick) {7}
730  DF  .~.~.~.~ With holder or housing for indicator {1}
731.~.~.~.~.~ Including seal

DEFINITION

Classification: 33/731

Including seal:

(under subclass 730) Subject matter having means for preventing matter from entering into, passing through, or escaping from the fluid.