Wireless telegraphy and wireless telephony : an understandable presentation of the science of wireless transmission of intelligence
- publisher: Chicago : American School of Correspondence
- creator: Ashley, Charles G. (Charles Grinnell) Hayward, Charles B. (Charles Brian), 1876-
- contributor: Hayward, Charles B. (Charles Brian), 1876-
- Keyword: Telegraph, Wireless. Radio.
- years: 1912, c1911.
- pages: 141 p. :
- class: TK5742
- notes: Includes index.
- download: pdf file
