Dr Martin Braun’s Electro-Dynamic Air Ship
Patent number: 356743
Issue date: Feb 1, 1887
“Be it known that I, MARTIN BRAUN, of Cape Vincent, in the county of Jefferson and State of New York, have invented certain new and useful Improvements in Aerial Ships..”
Drawing from SCIENTIFIC AMERICAN, April 16th, 1887.
Patent number: 352298
Issue date: Nov 9, 1886
“Be it known that I, MOSES S. COLE, a citizen of the United States, residing in the city of Rivas, Republic of Nicaragua, Central America, have invented new and useful Improvements in Aerial Vessels..”