. The Patent Office. Created: 1860-1895. Coverage: 1860-1895. Source Imprint: 1860?-1895?. Digital item published 12-1-2005; updated 2-12-2009. 325 The Patent Office, from Robert N. Dennis collection of stereoscopic views 6

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Keywords: ., 186, 1860-1895., coverage, created, imprint, source