Fahnestock clip (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Fahnestock clip" in English language version.

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books.google.com

United States. Patent Office (1907). Official gazette of the United States Patent Office. The Office. pp. 3187–. Retrieved February 6, 2013.
Sievers, Maurice L. (1991–1995). "Early Terminals: Fahnestock Clips - By Another Name". Crystal Clear: Vintage American Crystal Sets, Crystal Detectors and Crystals. Madison Books, Sonoran Publishing. p. 10. ISBN 9780911572964. Retrieved May 14, 2022.
The American Telephone Journal. 1905. pp. 638–.

US patent 0845268, John Schade, "SPRING TERMINAL-CLIP", issued February 26, 1907
US patent RE12642, John Schade, "SPRING TERMINAL-CLIP", issued March 11, 1907