. 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 ... . r/Bj H. GEARING 183 .(Ho Model.) 4 Sheets—Sheel 1 G. G, M. HAKDINGHAM. DIFFERENTIAL SPEED AND REVERSINO GEAR OR MOTOR CARS, TRAM OARS, it. No. 593,662. Patented Nov. 16, 1897,

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Keywords: ., bo, bookcentury1900, bookdecade1900, bookiddigestofunitedst00alle