Named after its inventor, what is the signal lamp used to transmit Morse Code, devised in the late 1800s and still used today on naval ships?
Aldiss Lamp Aldis lamp Signal lamp Morse lamp Signal lamps Arthur C. W. Aldis Aldis Lamp
arthur c w aldis signal lamps aldis lamp aldiss lamp morse lamp signal lamp
aldis lamp
WikipediaEntity
Aldis Lamp