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Author(s)
Edison, Thomas AlvaRecipient(s)
Preece, William HenryOthers Mentioned
Muirhead, John
Prescott, George Bartlett
Johnson, Edward Hibberd
Herz, Cornelius
Bell, Alexander Graham
Ladd (William) & Co
British Association for Advancement of Science
Telegraphic Journal
Philosophical Magazine
Subject(s)
Expositions, demonstrations, lecturesScientific and other instruments
Electromotograph
Telephone
Sales and service
Patents
Production difficulties and adjustments
Cylinder phonograph