The electric telegraph
Subtitle: a manual of complete, instruction in the principles, mechanism, and practice of the art of sending and receiving telegraphic messages, including multiplex and wireless systems of transmission.
By: Part I.--The electric telegraph, by Charles Thom. Part II. Wireless telegraphy, by A. Fredrick Collins.
Contributors: Thom, Charles.; Collins, A. Frederick 1869-
Publisher: American school of correspndence
Published: 1908
Place of publication: Chicago
Language: eng
Number of pages: 99
Subjects: Telegraph -- Operators' manuals; Telegraph, Wireless
Genres: Operators' manuals.