1) Two-stroke diesel engine 
Brons, named after Jan Brons, was a Dutch engine manufacturer in Appingedam that existed from 1907-2004. The company made over 4000 engines for large machines such as ships, tractors, and busses. The company is notable for its early stationary industrial motors and ship engines, but also for an early 1899 prototype light omnibus called `The Brons....