manhole-boxes

Updated: May 25, 2025

Plans to that end were now rapidly maturing; but there would be needed among many other things every one of them new and novel dynamos, switchboards, regulators, pressure and current indicators, fixtures in great variety, incandescent lamps, meters, sockets, small switches, underground conductors, junction-boxes, service-boxes, manhole-boxes, connectors, and even specially made wire.

Frank Lewis Dyer - Edison, His Life and Inventions