439 / | HD | ELECTRICAL CONNECTORS |
296 | DF | WITH COUPLING MOVEMENT-ACTUATING MEANS OR RETAINING MEANS IN ADDITION TO CONTACT OF COUPLING PART {15} |
304 | DF | .~ Including lock for retaining means (e.g., key or combination lock or requiring "special" tool) {2} |
305 | .~.~ Magnetically operated latch |