Inside Out Library · ExploreAnnual report of the Commissioner of Patents for the year .. (1866)United States. Patent Office · Washington : G.P.O · leaf 446436 REPORT OF THEUnited States. Patent Office · PatentsInternet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.More pictures from Annual report of the Commissioner of Patents for the year ..More like this