Important+Inventions+P3+1929

Invention #1 Ernest O.Lawrence was an brillant inventor that made a atom crusher, but they thought it could do something more than an atomic crusher but a atomic bomb that helped America by protecting there freedom. Invention #2 Sir Maxim invented the "Maxim Gun" in 1929 in Great Britian in 1929, although Maxim was in Great Britian at the time he is an American born citizen and helped America's fire power and tactics greatly.

Invention #3 The Aeroplane-Gun was invented by G.Constantinesco in 1929 this greatly helped America by increasing Air War-fare.