Chicago : Engineering and Contracting Pub. Co. · leaf 340
1,955. Improvement in Wood Pavements;Joseph H. Wilkinson. Concord, N. H., in-ventor; patented April 12, 1870.This pavement was intended for hoise tail-ways and street crossings, so constructed ofplanks supporting blocks, the whole being keyedt og.-ther. No. 102.277. Improvement in Wooden… … Fig. 10—Round Block Pavement UnderBetteley Patent.
Buildings
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
