San Francisco : Architect and Engineer, Inc · leaf 293
128 THE ARCHITECT AND ENGINEER YouVe seen thisSwitchboard … probably without its exciting anyunusual curiosity, appended tothe wall of an apartment house,hotel, theatre or public building. You should learn more aboutthis D. F. Push Button PanelBoard for it means efficiency andecono?ny and a satisfied client. This is the first of a series of…
Architecture · Building
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