Cyclopedia of telephony and telegraphy :
a general reference work ... /
prepared by a corps of telephone and telegraph experts, and electrical engineers of the highest professional standing ; illustrated with over two thousand engravings ...

Description

Corporate Author

American School of Correspondence, Chicago.

Language(s)

English

Published

Chicago : The School, 1912.

Subjects

Telegraph.
Telephone.

Note

"Authorities consulted" at beginning of each volume.

Physical Description

4 v. : fronts. (ports.) ill., plates ; 25 cm.

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