A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Automatic telephone exchanges
Describes briefly the system as applied to a small exchange of one hundred subscribers. (1300 w.)
Automatic telephone exchanges
Describes briefly the system as applied to a small exchange of one hundred subscribers. (1300 w.)
Automatic telephone exchanges
Builder
1899
Ill.
Article (Journal)
English
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