Illinois Society of Architects · Chicago · leaf 263
tairways. Tlie width of stairs shallbe at least eighty per cent of the width ofstairs as computed by the formuhe givenherein and In no case less than twelve feet. (d) Every building shall have at leastone stairway from the ground to the topfloor and one stairway from the lowestbasement or collar to… … THE ONLYINTERLOCK WHICH PRE-LOCKS THE CONTROL LEVER BEFORE THESHAFTWAY DOORIS OPENED 100% SAFETY PhoneWabash 0530 SHUR-LOC COMPANY of ILLINOIS 208 South La Salle Street Chicago
Architecture · Building · Architects
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
