Answer:
oil company
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Explanation:
The steamboat. it helped travel rivers upstream
Answer: The Invention of the timer gear on fighter aircraft, the monoplane and more advanced aircraft such as fighter and bombers. the tank, the submarine, the machine gun, the dreadnought, the semi-auto rifle, chemical weapons, and the sub-machine gun. The tank, the submarine, the machine gun, semi-auto rifle, and the sub-machine gun are all still used today.
Explanation:
Answer:
chilled plow
Explanation:
James Oliver, an early industrialist in South Bend, who invented the chilled plow. Though his name is not nearly as familiar as John Deere's, James Oliver of South Bend revolutionized agriculture with his invention of a new type of plow. An 1878 advertisement for the Oliver Chilled Plow boasted: “Buy no other.
