Illinois Society of Architects · Chicago · leaf 162
building- wall or over any roof or underany sidewalk, except where such conduitsare used. No electric current sliall be sup-plied fron-i any trolley line for any purposewhatever to any building- except for light-ing the power stations from which currentis supplied to such trolley lines. 836.…
Architecture · Building · Architects
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
![An illustration from Telephones and telegraphs: 1902 : [and Municipal electric fire alarm and police patrol systems] (1906)](https://img.insideoutlibrary.com/img/200/ia-cu31924022817674-68-28.webp)
