nder; diffuse anodized aluminum reflector mounted in pousinss 4 eonsists of a heat resistant glass Fresnel lens re- gressed 34” in ceiling trim assémbly. Leaf springs hold assembly tightly against ceiling. May be opened without tools and hinged for relamping. Furring 300W PS-30 for 200W multiply by… … Specification Features Units are for recessing in all types of new or existing ceilings; relamp from below. ———7 assures neat installed appearance with no light leaks — Universal Furring exclusive pull-up feature described on page 22. ig a steel cylinder; connector for 14” flexible conduit…
![An illustration from Telephones and telegraphs: 1902 : [and Municipal electric fire alarm and police patrol systems] (1906)](https://img.insideoutlibrary.com/img/200/ia-cu31924022817674-60-14.webp)
