439 / | HD | ELECTRICAL CONNECTORS |
43 | DF | WITH SELECTABLE CIRCUIT, E.G., PLUG BOARD {5} |
44 | DF | .~ Planar circuit overlying a second planar circuit, both adapted to be electrically connected {1} |
45 | DF | .~.~ Connected by transversely inserted pin {3} |
46 | .~.~.~ Pin having selection feature |