US PATENT SUBCLASS 429 / 89
.~.~ Other stopper, cap or plug type

Current as of: June, 1999
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429 /   HD   CHEMISTRY: ELECTRICAL CURRENT PRODUCING APPARATUS, PRODUCT, AND PROCESS

72  DF  HAVING SPECIFIED VENTING, FEEDING OR CIRCULATION STRUCTURE (OTHER THAN FEEDING OR FILLING FOR ACTIVATING DEFERRED ACTION-TYPE BATTERY) {5}
82  DF  .~ Venting structure {5}
89.~.~ Other stopper, cap or plug type

DEFINITION

Classification: 429/89

(under subclass 82) Apparatus having a stopper, cap or plug-type venting means other than those in subclasses 62, 83, 84, and 86.