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; Burglar
Publisher: Creative Media Partners, LLC
Published: 2018
Language: eng
ISBN-13: 9780341940081