Illinois Society of Architects · Chicago · leaf 400
1169 SCHLESSCONSTRUCTION CO., Inc. 236 N.CLARK ST. CfylC&GC … \i. ■ - ii in \i. .h. .ii \ oi ition Bldgr, H.lal.ir.l ft Root. trchitecti 39C Hard copper pipe may be used without be-ing inclosed on conduit, provided: (a) Pipe shall conform to the followingthicknesses: Nominal Pipe Size(Inches) Decimal Equivalentof Wall Thickness %% 1 1% 1% 2 2%33%…
Architecture · Building · Architects
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
