How about Tullio's disc brakes (using Amadori Campagnolo SpA), his clothes hanger and motorised spit / rotisserie. Question is did any of the last two make it off the drawing board.
David Rattray & Co. (Flying Scot) made of all things pivot / connection pins for bailey bridges as part of a war contract to keep the wolves at bay during the dark years...
Bob Reid Stonehaven Scotland
http://www.flying-scot.co.uk (mapped)