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} |
87 | .~.~ Gang type {1} | |
88 | DF | .~.~.~> Having manifold |