American Vitrified Conduit Company : vitrified salt glazed underground and interior conduits, contractors for complete installation of conduit systems. . Octagon Single Duct Self-Centering Type, with Concrete Base and Cover. Class B. Construction, AH our Single Ducts are of the Self-Centeringor Socket Type, assuring a positive joint and perfectalignment. Hi g f- 5 8 z s 8. s cW i ou J3 G0 * I >» o H O w U c 5 I g u C/3 f </) G I 8 8 % U 8

---

Size: 1017px × 2456px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1800, bookdecade1890, bookidamericanvitr, bookyear1899