American inventor who in 1775 designed a man-propelled submarine that was ineffectual but subsequently earned him recognition as a submarine pioneer (1742-1824)
[ Syn: bushnell , david bushnell , father of the submarine ]
American inventor who in 1775 designed a man-propelled submarine that was ineffectual but subsequently earned him recognition as a submarine pioneer (1742-1824)
[ Syn: bushnell , david bushnell , father of the submarine ]