US PATENT SUBCLASS 73 / 509
.~ With response to a nonspeed condition

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

488  DF  SPEED, VELOCITY, OR ACCELERATION {29}
509.~ With response to a nonspeed condition

DEFINITION

Classification: 73/509

(under subclass 488) Apparatus including a sensing device effected by a condition additional to speed or rate of change of speed.

SEE OR SEARCH CLASS

137, Fluid Handling,

26+, for a prime mover controlled speed and another condition and subclasses 51+ for a valve controlled by speed and another condition.