Patent Attorney and Electrical Expert
Formerly Assistant Examiner, U.S. Patent Office
GLENN M. HOBBS, Ph.D.
Secretary, American School of Correspondence
Formerly Instructor in Physics, University of Chicago
American Physical Society
CHARLES G. ASHLEY
Electrical Engineer and Expert in Wireless Telegraphy and Telephony
A. FREDERICK COLLINS
Editor, Collins Wireless Bulletin
Author of "Wireless Telegraphy, Its History, Theory, and Practice"