US PATENT SUBCLASS 73 / 204.15
.~.~ Including detail of feedback or rebalancing circuitry

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

861  DF  VOLUME OR RATE OF FLOW {23}
204.11  DF  .~ Thermal type {9}
204.15.~.~ Including detail of feedback or rebalancing circuitry {1}
204.16  DF  .~.~.~> By control of a separate heating or cooling element

DEFINITION

Classification: 73/204.15

Including detail of feedback or rebalancing circuitry:

Subject matter under 204.11 describing a particular feature of the measuring circuit in which a portion of the circuit output is either (a) fed back to its input, or (b) used to control a circuit or circuit adjusting element which balances a bridge measuring circuit.