| 439 / | HD | ELECTRICAL CONNECTORS |
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| 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 |  | .~.~ Connected by transversely inserted pin {3} |
| 46 | DF | .~.~.~> Pin having selection feature |
| 47 | DF | .~.~.~> Panel member having planar surface for supporting circuit and parallel surface for supporting second circuit |
| 48 | DF | .~.~.~> Linear conductors of first surface; linear, normally disposed, conductors in second circuit |