1935 – Mr. X – a Radio Robot – Ted Muralt (American)
Although called a "radio robot", there is no "Radio" about him. The article gets around this by refering to a previous article on "The Radio Robot". To that extent, this is a "mechanical man" to that earlier "radio robot". Otherwise he is controlled by a simple switch box.
Above images and the Radio-Craft article courtesy of Linda Paulsen, Thomas Mittelstaedt , and Mark Durenberger from the Pavek Broadcast Museum http://www.museumofbroadcasting.org/