. 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 ... . iNo Model.) 2 Sheet3—Sheet 2. J. MoD. RO&ERS. SPRINS PROPELLED VEHICLE. No. 424,903. , Patented Apr. 1, 1890. iilUU ™ irTTTTMO -?lf-^-. J^-nt/en^of- SPRINGS 25 (Do Model.) Ho. 438,273. 2 Sbeets—Sheet 1. A. E. Patented Oct. 14, 1890.

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Keywords: ., bo, bookcentury1900, bookdecade1900, bookiddigestofunitedst00alle