US PATENT SUBCLASS 92 / 156
.~ Valve means in lubricant passage


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

153  DF  WITH LUBRICATING MEANS {5}
156.~ Valve means in lubricant passage


DEFINITION

Classification: 92/156

(under subclass 153) Apparatus comprising a passage through which lubricant is adapted to flow and means associated with said passage capable of being operated to selectively open or close said passage.