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Friday, July 10, 2015

American Automobile Industry Innovations, 1920-1940

US Automobile Innovations, 1920-1940

1921 – Hudson/Essex – Closed Steel Bodied Automobile
1922 – 1st Carburetor Air Cleaner
1923 – Packard – 4 Wheel Brakes
1924 – Tetra Ethyl Lead Gasoline Additive
1924 – Balloon Tires Standard
1924 – Thermostatic Control of Cooling System
1924 – Chrysler – High Compression Engine with 7 Bearing Crankshaft
1925 – 1st Hydraulic Shock Absorber
1926 – 1st Chrome Plating
1928 – Safety Glass Windshield Standard
1928 – Fuel Pumps Introduced
1929 – Downdraft Carburetor
1929 – Automobile Radio
1931 – Hydraulic Valve Lifters Introduced
1931 – 1st Automatic Choke
1931 – 1st inside Sun Visors
1931 – Buick – Buick – Vacuum Powered Clutch
1931 – Dodge Vacuum Powered Clutch
1931 – Plymouth – Flexible Engine Mounting
1932 – Hudson -- Ignition Key Starting
1933 – First Turn Signal
1934 – GM Independent Front Suspension
1934 – Chrysler – Airflow Design – Body and Frame Combined
1935 – Introduction of Lincoln Zephyr
1935 – GM – All Steel Roof
1935 – Sloping Side Windows Built In
1935 – Defrosters
1937 – Oldsmobile – “Automatic” Transmission
1937 – Studebaker – Windshield Washers

1937 – Nash – Fresh-Air Heater

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