American Telegraphy and Encyclopedia of the Telegraph
Subtitle: Systems, Apparatus, Operation. Embracing Electrical Testing; Primary and Storage Batteries; Dynamo Machines; Morse, Duplex, Quadruplex, Multiplex, Submarine, Automatic, and Wireless Telegraphy; Burgla
Publisher: Creative Media Partners, LLC
Published: 2018
Language: eng
ISBN-13: 9780342587773