Anyone sending a sketch and descrlptlon may quickly ascertain our opinion feee whether an invention is probabr patentable. coo munications strictlyconl 8dential. HANDBOOK on Patents sent tree. Oldest agency for se B ring patents. "at! n taken through Munn & Co. receive special notice, without charge, in the Stintific Hm ri tan. A handsomely illustrated weekly. Lar les t cil* culatlon of any 8clentific Journal. Terms. '3 o year; four monthS. ,1. told by all newsdealers. IUNN & CO ,3GIB'oa New Drk Branch Office. 625 8rt Washington, D. C.
This article was originally published with the title "Patents"