The Atlas Imperial Engine Company manufactured diesel marine propulsion engines for boats, ships and yachts located at 1000 19th Avenue, Oakland, California.  Founded in 1903 by John Lorimer in San Francisco, the company moved to Oakland in 1916. 

Considered one of the most serviceable diesel engines ever built, many of the engines which were built in the 1920's were still in operation in 1951, when the Oakland Atlas-Imperial company went out of business. 

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