Question: Huber Manufacturing Co. created what sort of self-propelled steam engine?
Sentence (from "Steam power during the Industrial Revolution"): From Englishman Thomas Newcomen's atmospheric engine, of 1712, through major developments by Scottish inventor and mechanical engineer James Watt, the steam engine began to be used in many industrial settings, not just in mining, where the first engines had been used to pump water from deep workings.
Relevant evidence: No