Elisha Gray (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Elisha Gray" in English language version.

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4web.archive.org

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4storage.googleapis.com

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3loc.gov

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2books.google.com

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2espacenet.com

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1playpiano.com

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1oberlin.edu

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1graybar150.com

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1poweringthenewera.com

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1telhistory.ru

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1amphilsoc.org

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1doi.org

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1stanford.edu

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amphilsoc.org

search.amphilsoc.org

"APS Member History". search.amphilsoc.org. Retrieved 2021-05-10.

books.google.com

Huurdeman, Anton A. (2003). The Worldwide History of Telecommunications. Hoboken, New Jersey: Wiley-Interscience. ISBN 0-471-20505-2.
Edwards, Anthony William Fairbank (2004). Cogwheels of the Mind: The Story of Venn Diagrams. Baltimore, Maryland, USA: Johns Hopkins University Press. pp. 48, 50. ISBN 0-8018-7434-3.

doi.org

Heath, F. G. (September 1961). "Pioneers Of Binary Coding". Journal of the Institution of Electrical Engineers. 7 (81). Manchester College of Science and Technology, Faculty of Technology of the University of Manchester, Manchester, UK: Institution of Engineering and Technology (IET): 539–541. doi:10.1049/jiee-3.1961.0300. Archived from the original on 2020-03-28. Retrieved 2020-06-22.

espacenet.com

worldwide.espacenet.com

US 174465, "Improvement in telegraphy", issued 7/3/1876
US 161739, "Improvement in transmitters and receivers for electric telegraphs", issued 6/4/1875

graybar150.com

"Elisha Gray: The Early Years - Graybar 150 years". Archived from the original on 2019-08-09. Retrieved 2019-08-09.

ieee.org

ieeexplore.ieee.org

Heath, F. G. (September 1961). "Pioneers Of Binary Coding". Journal of the Institution of Electrical Engineers. 7 (81). Manchester College of Science and Technology, Faculty of Technology of the University of Manchester, Manchester, UK: Institution of Engineering and Technology (IET): 539–541. doi:10.1049/jiee-3.1961.0300. Archived from the original on 2020-03-28. Retrieved 2020-06-22.

loc.gov

lccn.loc.gov

"Alexander Graham Bell family papers". LOC.gov. Library of Congress. Archived from the original on 2013-02-16.
Cattermole, Kenneth W. (1969). Written at Harlow, Essex, UK. Principles of pulse code modulation (1 ed.). London, UK / New York, USA: Iliffe Books Ltd. / American Elsevier Publishing Company, Inc. pp. 245, 434. ISBN 978-0-444-19747-4. LCCN 78-80432. SBN 444-19747-8. (2+448+2 pages)