Title :
Crossbar Tandem System
Author_Institution :
Bell Telephone Laboratories, Inc., New York, N. Y.
Keywords :
Circuit testing; Cities and towns; Conductors; Manuals; Switches; Switching systems; Telephony;
Journal_Title :
American Institute of Electrical Engineers, Transactions of the
DOI :
10.1109/T-AIEE.1950.5060254
