Standard and water-tight boxes for all electrical installation purposes (1908)
H. Krantz Manufacturing Co. · leaf 15
!. 1. 9 Boxwith <i. Cover. Outside dimeiof box, No. 309 Box with F. Cover. V … Fig. 2.309 Box with S. Cover. 3 V indiameter. IX i11 depth. Section of 309 Box with F. Cover. This \ suitable for expi >sed m It is tapped to r< end ^^*fl of the conduit. ■which are shown on opposil Le many pur-
