What stages did the invention of foreign steam engines go through?
700 years later, in the13rd century, Europeans applied hydraulic technology to bellows. 1775, John Wilkinson obtained a patent for a hydraulic blower, which was basically the same as that described by Wang Zhen in 13 13, except that a crankshaft was added after improvement. 1780, James Picard made great improvements to this equipment. 1804, an Englishman, a dervish, made the world's first steam locomotive that could run on the track. 1906, the American command company manufactured the world's first gasoline locomotive.