. Digest of United States automobile patents from 1789 to July 1, 1899, including all patents officially classed as traction-engines for the same period. Chronologically arranged ... together with lists of patents in the classes of portable-engines, traction-wheels, electric locomotivs, and electric railway battery systems ... . (No Mode].) 4 ShAQts—Sbeet 3 R. R. DOAN. EOAB ENGINE. Patented Feb. 19, (No Hode].) No. 397,976, J^ 4 SbeetB—Sheet 4. E. R. DOAN. ROAD EKGUNE. Patented Feb. 19, 1889, ?.^:r^^

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Keywords: ., bo, bookcentury1900, bookdecade1900, bookiddigestofunitedst00alle