US PATENT SUBCLASS 418 / 254
.~ Integrally connected

Current as of: June, 1999
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418 /   HD   ROTARY EXPANSIBLE CHAMBER DEVICES

253  DF  INTERCONNECTED VANES {3}
254.~ Integrally connected {1}
255  DF  .~.~> Diametrically aligned

DEFINITION

Classification: 418/254

(under subclass 253) Apparatus in which two or more vanes are rigidly connected to each other for simultaneous movement.