Automatic Private Branch Exchange Development in San Francisco

Author(s): Gerald Deakin
Publisher: IEEE - Institute of Electrical and Electronics Engineers, Inc.
Publication Date: 1 January 1912
Volume: XXXI
Page(s): 365 - 396
ISSN (Paper): 0096-3860
DOI: 10.1109/T-AIEE.1912.4768417
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