Cyclopedia of Telephony and Telegraphy, Vol. 1
by American School of Correspondence
This edition has images.
Title:
Cyclopedia of Telephony and Telegraphy, Vol. 1A General Reference Work on Telephony, etc. etc.
Credits:
Produced by Ronald Holder and the Online DistributedProofreading Team at https://www.pgdp.net.
Summary:
"Cyclopedia of Telephony and Telegraphy, Vol. 1" by the American School of Correspondence is a comprehensive scientific publication written in the early 20th century. This work serves as a general reference on various aspects of telephony and telegraphy,...