The telephone
Subtitle: a lecture entitled, Researches in electric telephony : delivered before the Society of Telegraph Engineers, October 31st, 1877
By: by Alexander Graham Bell ; published by the Society and edited by Frank Bolton and William Edwrd Langdon.
Contributors: Bolton, Francis John, Sir, 1831-1887.; Langdon, William Edward, 1832-1905.; Institution of Electrical Engineers.
Publisher: E. and F.N. Spon
Published: 1878
Place of publication: London; New York
Language: eng
Number of pages: 32
Subjects: Telephone.
Other titles: Researches in electric telephony.