US PATENT SUBCLASS 429 / 86
.~.~ Reactive, absorbable or diffusive 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}
86.~.~ Reactive, absorbable or diffusive type

DEFINITION

Classification: 429/86

(under subclass 82) Apparatus wherein the vent contains structure or materials which react with, absorb or diffuse the fluid passing therethrough.