. 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 ... . 440 TRACT/ON ENG/NES No. 620,030. J. McF. ENGINE. lApTUtsUn ai*d a*in. a, IMS.) Palentld Fsb. 21, 1899. 4 Sh>»ti-3hatl 2. 620,030. J. McF. ENGINE. Paltnteil Feb. 21, III99. 4 Shseti—Shaft 3.

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Keywords: ., bo, bookcentury1900, bookdecade1900, bookiddigestofunitedst00alle