Standard and water-tight boxes for all electrical installation purposes (1908)
H. Krantz Manufacturing Co. · leaf 12
4t to Miit conditions This box is mad ■ I and in par-lapted i<>r usein concrete * eilings andfloors. • box setin < oncrete ceiling (below floor level) and extend-ing thi i ling level below. tiown is ■with rubber bushing for dro] -r<l W< : »ared to furnish I box H h and heightmi i he… … -.*&* No. I 18. ■;, of bo* -1 20 KRANTZ TRADE MARK. STAMPED STEEL BRACKET BOXES.
