Who invented the thermos flask
and then forgot to patent it in 1892?
INCORRECT
Joseph Swan
Thomas Edison was beaten by Britain's very own Joseph Swan. Swan's house in Gateshead was the first private house in the world to be lit up by light bulbs. ...from the 'Darkness' of the north came 'light' for London and then the world!
Image in the public domain.
Sir James Dewar
William Addis