William Jr Maver

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

The Quadruplex: With Chapters on the Dynamo-Electric Machine in Relation to the Quadruplex; The Practical Working of the Quadruplex; Telegraph Repeaters, and the Wheatstone Automatic Telegraph (Classic Reprint)

Maver's Wireless Telegraphy: Theory and Practice

Maver's Wireless Telegraphy: Theory and Practice (Classic Reprint)

The Quadruplex