Pin-back button (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Pin-back button" in English language version.

refsWebsite

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70^th place

63^rd place

low place

loc.gov

U.S. patent 564,356 "Badge Pin or Button" by George B. Adams Assignor for Whitehead & Hoag Company of New Jersey, issued 21 July 1896
U.S. patent 493,003. "Device for Displaying Photographs" by Benjamin S. Whitehead, issued 7 March 1893
U.S. patent 476,939 Emblematic Society Badge and Rosette" Benjamin S. Whitehead, issued 14 June 1892
U.S. patent 653,150 "Badge-button and Pin-back Therefor" by Augustus Phelps, issued 3 July 1900
U.S. patent 773,419 "Backing for Display Buttons", issued 25 October 1904 by David Pudlin

U.S. patent 493,003. "Device for Displaying Photographs" by Benjamin S. Whitehead, issued 7 March 1893