439 / | HD | ELECTRICAL CONNECTORS |
775 | DF | METALLIC CONNECTOR OR CONTACT HAVING MOVABLE OR RESILIENT SECURING PART {15} |
790 | DF | .~ Single operator for securing and joining plural conductors {1} |
791 | DF | .~.~ Single screw-threaded operator {3} |
794 | .~.~.~ Conductors secured in duplicate receiving means |