NDLI: American telegraphy and encyclopedia of the telegraph: systems, apparatus, operation. Embracing electrical testing; primary and storage batteries; dynamo machines; Morse, duplex, quadruplex, multiplex, submarine, automatic, and wireless telegraphy; burglar-alarm, fire-alarm, and police-alarm telegraphy; printing telegraphy; military and naval signaling; railway block systems; telegraph wire, cables, and conduits; etc.

Content Provider	Internet Archive
Author	Maver, William, jr
Organization	University of California Libraries
Language	English
Publisher	New York, Maver publishing company
Publisher Date	1903-01-01
Access Restriction	Open
Content Type	Text
Resource Type	Book

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