439 / | HD | ELECTRICAL CONNECTORS |
527 | DF | WITH SUPPORTING MEANS FOR COUPLING PART {18} |
540.1 | .~ Supporting plural, independent coupling parts {2} | |
541 | DF | .~.~> Plural lamp or electron tube sockets |
541.5 | DF | .~.~> Stacked right-angle connector for use on printed circuit board (i.e., PCB) |