Title :
Simplified Subscriber Toll Dialing for Low-Rate Low-Density Toll Circuits Between Community Dial Offices
Author :
Brooke, Eric ; Blackhall, J.M. ; Blashfield, W.H.
Author_Institution :
North Electric Manufacturing Company, Galion, Ohio.
Keywords :
Circuits; Costs; Exchange rates; Investments; Telephony; Urban areas;
Journal_Title :
American Institute of Electrical Engineers, Transactions of the
DOI :
10.1109/T-AIEE.1950.5060313
