. 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 ... . iiiiiiiirT^ ^&rtw<fy? ll fill 0t«L^ ^—i* V--<i—— SPRINGS No. 80,206. 0. D. Propelling Vehicle, :3. 2 Sheets—Sheet 2. Patented July 21, ^?r %^^

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Keywords: ., bo, bookcentury1900, bookdecade1900, bookiddigestofunitedst00alle