A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Conduit construction in telephone cable tunnels
Average length is about 700 ft. and depth beneath level of sidewalk varies from 80 ft. to 90 ft. Tunnels are built entirely of concrete.
Conduit construction in telephone cable tunnels
Average length is about 700 ft. and depth beneath level of sidewalk varies from 80 ft. to 90 ft. Tunnels are built entirely of concrete.
Conduit construction in telephone cable tunnels
Elec. Rev
Electrical Review ; 75
1919
3 pages
6 Figs.
Article (Journal)
English
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