US PATENT SUBCLASS 73 / 494
.~.~ Installed in rotary speed source

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

488  DF  SPEED, VELOCITY, OR ACCELERATION {29}
493  DF  .~ Structural installation or mounting means {1}
494.~.~ Installed in rotary speed source

DEFINITION

Classification: 73/494

(under subclass 493) Apparatus including a rotary element that is a functional part of both a speed responsive device and a disparate function device the speed of which is sensed.