US PATENT SUBCLASS 188 / 266.7
.~ Piezoelectric

Current as of: June, 1999
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188 /   HD   BRAKES

266  DF  INTERNAL-RESISTANCE MOTION RETARDER {29}
266.7.~ Piezoelectric

DEFINITION

Classification: 188/266.7

Piezoelectric:

(under subclass 266) Internal resistance motion retarder in which a material that converts alternating current into mechanical vibrations is used.