US PATENT SUBCLASS 418 / 149
.~ Seal element between stationary cylinder parts

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

104  DF  WITH MECHANICAL SEALING {14}
149.~ Seal element between stationary cylinder parts

DEFINITION

Classification: 418/149

(under subclass 104) Apparatus provided with means mounted or positioned on a cylinder portion to engage another cylinder portion to oppose the passage of fluid therepast.