. 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 ... . ~77t Yrt. e- J- J- e J* / 303 TRACTION ENGINES. No. 279,925. 2 Sheotl—Sheet 2. J. H. ELWARD. TRACTION EUalNE. Patented June 26, 1883.
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Keywords: ., bo, bookcentury1900, bookdecade1900, bookiddigestofunitedst00alle