Messrs. Munn & Co, Solicitors of Patents, have had nearly fifty years' continuous experience. Any one may quickly ascertain, free, whether an invention probably is patentable by writing to Munn Co. Communication a strictly confidential. A handbook of patents and how to obtain them sent free. taken through Munn Co. receive special notice in the ScientiiU: American. This splendid weekly paper, elegantly illustrated, has the largest circulation of ant scientific work. 3 a year, Specimen copies free. Address MUNN CO., New York, 36t Broadway.
This article was originally published with the title "Patents" in SA Supplements 38, 976supp, 175 (September 1894)