Auto-Ordnance Company developed a sub-machine gun invented by who ?
Auto-Ordnance Company Auto-Ordnance was a U.S. arms development firm founded by retired Colonel John T. Thompson of the U.S. Army Ordnance Department in 1916. Auto-Ordnance is best known for the Thompson submachine gun, notorious as a gangster weapon of the Roaring Twenties and famous as a military weapon of the Allied forces in World War II.
Cei-Rigotti The Cei-Rigotti (also known as the Cei gas rifle) is an early automatic rifle created in the final years of the 19th century by Amerigo Cei-Rigotti, an officer in the Royal Italian Army.