Multiplex telephony and telegraphy :
by means of electric waves guided by wires /
By George O. Squier ...

Description

Main Author

Squier, George Owen, 1865-1934.

Related Names

United States. Army.

Language(s)

English

Published

Washington : Govt. print. off, 1911.

Subjects

Telegraph.
Telephone.

Note

On verso of t.-p.: War department. Document no. 390. Office of the chief signal officer.

Physical Description

102 p. : illus., tab., diagrs. ; 23 1/2cm.

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