US PATENT SUBCLASS 73 / 861.68
.~.~.~ With heating element

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

861  DF  VOLUME OR RATE OF FLOW {23}
861.42  DF  .~ Using differential pressure {6}
861.65  DF  .~.~ Pitot {3}
861.68.~.~.~ With heating element

DEFINITION

Classification: 73/861.68

With heating element:

(under subclass 861.65) Subject matter wherein the Pitot tube is provided with a heater (e.g., for de-icing).