Standard and water-tight boxes for all electrical installation purposes (1908)
H. Krantz Manufacturing Co. · leaf 6
KRANTZ CLAMP TYPE CEILING BOXES. This cut shows the box No. 603 with three conduit clamps. … This type oi box is especially adapted tor ceiling work and is so constructedin connection with fastening conduit is performed from the in-side oi the box. This makes it possible to use the box without defacing theway ; the hole in the ceiling being only the size of the box proper.i t up to the…
