Handbook of construction plant, its cost and efficiency (1914)
Dana, Richard Turner, 1876-1928 · Chicago, The M. C. Clark Publishing Co. · leaf 150
l done during very cold weather, in December andJanuary. The conveyor used on this contract was also employed by CONVEYORS 145 Messrs. Ryan and Parker for similar work in a gre(at number ofplaces, its length being increased or diminished as desired byeasily made changes in the number of idlers and… … I t» e mMM
Contractors' operations · Building
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
