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1940 Oldsmobile Hydramatic Drive Classic Vintage Print Ad | Oldsmobile, Automatic transmission, Classic cars trucks
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1948 Oldsmobile touting the "Hydra-Matic Drive" automatic transmission. | Oldsmobile, Car ads, Vintage cars
Legends of car world - First cars in the world to get important technologies - First car with fully automatic transmission - 1940 Oldsmobile | ET Auto
The Oldsmobile automatic safety transmission operated by the short lever shown on the steering column. - NYPL Digital Collections
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