Keywords: United States Patent Office c1880.jpg en Vignette of the US Patent Office Building from an 1880s US patent certificate The Cooper Collections uploader's personal collection ; Scanned by the uploader Centpacrr 1880 US Patent Office PD-US PD-USGov Original upload log en wikipedia ftcg page en wikipedia United_States_Patent_Office_c1880 jpg wikitable - 03 38 14 June 2013 2 532 × 1 204 2 084 803 bytes Centpacrr w en <nowiki> Summary Vignette of the US Patent Office Building from an 1880s US patent certificate The Cooper Collections uploader's personal collection ; Scanned by the uploader Centpacrr </nowiki> Patent Office Building |