This page provides all possible meanings and translations of the word AEC
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Atomic Energy Commission, AEC(noun)
a former executive agency (from 1946 to 1974) that was responsible for research into atomic energy and its peacetime uses in the United States
Associated Equipment Company
AEC was a British vehicle manufacturer which built buses, motorcoaches and lorries from 1912 until 1979. The acronym stood for the Associated Equipment Company, but this name was hardly ever used; instead it traded under the AEC and ACLO brands.
While famously associated with London's Routemaster buses, AEC supplied commercial vehicles to many companies both domestically and around the world.