US PATENT SUBCLASS 137 / 229
.~.~ Selectively connected

Current as of: June, 1999
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137 /   HD   FLUID HANDLING

223  DF  INFLATABLE ARTICLE (E.G., TIRE FILLING CHUCK AND/OR STEM) {6}
227  DF  .~ With gauge or indicator {2}
229.~.~ Selectively connected

DEFINITION

Classification: 137/229

(under subclass 227) Apparatus having means whereby the gauge or indicator may be selectively placed in or out of communication with the filling passage of the chuck or stem.