. 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 ... . ?^«.^^£«c/c,.«c^ ^^t**-*/ &^rir-tz<^u^ No. 320,743. 4 Sheatfl—Sheet C. AMES. TRACTION EN8INE. Patented June 23, .—Ciceytrar- iao Model.) No. 320,752, E, M. BIRDSALL. TBAOTION EN8INE. Pat«ntedJnne 23, 1815. WITNESSES

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Keywords: ., bo, bookcentury1900, bookdecade1900, bookiddigestofunitedst00alle