US PATENT SUBCLASS 138 / 89.2
.~.~.~ Combined

Current as of: June, 1999
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138 /   HD   PIPES AND TUBULAR CONDUITS

89  DF  WITH CLOSURES AND PLUGS {7}
*  DD  .~ Inflation stem type {3}
89.1  DF  .~.~ Air and dust cap {1}
89.2.~.~.~ Combined

DEFINITION

Classification: 138/89.2

(under subclass 89.1) Closures in which the air cap and dust cap are combined in one structure.