Cyclopedia of architecture, carpentry, and building : a general reference work (1912)
American Technical Society · Chicago : American Technical Society · leaf 93
-pe. The advantages of the universaltype of outlet-box are that one form of box will ser\^e for any ordinary^conditions, the openings being made according to the number ofconduits and the directions in which they enter the box. Fig. 48 shows a waterproof form of outlet-box used out of doors,or in… … Fig. 47. Universal and Knock-Out Type of Outlet Box.
Architecture · Building
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