The Chamberlin "Rover" engine from 1939 built by Clarence D.Chamberlin from  Jersey City after his acquisition of the Rover rights to Jean Roché.

-The L-496 engine obtained its Type Certificate, the ATC-number was 37. It was an inverted 6-cylinder in-line air-cooled engine that delivered 100/110 hp. It was a remanufacturing of the Michigan Rover that was built by Michigan Aero Engine Corp.

From appendix 6: In addition to the L-496 engine mentioned in the main text, they made the L-236 and L-267.