Telephony
Subtitle: a manual of the design, construction, and operation of telephone exchanges.
Publisher: McGraw-Hill
Published: 1903
Place of publication: New York
Subjects: Telephone
Table of contents: title: Vol. 1. The location of central office.-  Vol. 2. Construction of underground conduits.-  Vol. 3. Construction of cable plant.-  Vol. 4. Construction of aerial lines.-  Vol. 5. The Substation.-  Vol. 6. Switchboards [and] the central office.