US PATENT SUBCLASS 174 / 22 C
.~.~.~ Concentric

Current as of: June, 1999
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174 /   HD   ELECTRICITY: CONDUCTORS AND INSULATORS

8  DF  WITH FLUIDS OR VACUUM {12}
21 R  DF  .~ Conduit or cable joints {6}
22 R  DF  .~.~ With fluid stops {1}
22 C.~.~.~ Concentric

Unofficial Alpha Subclasses: R C

DEFINITION

Classification: 174/22

(under subclass 21) Joints having means for preventing passage of fluid from one section to another.

(1) Note. Compare this class, subclasses 20 and 23, for other fluid stops and seals.