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
signal lamps signal lamp arthur c w aldis morse lamp aldiss lamp aldis lamp
aldis lamp
WikipediaEntity
Aldis Lamp