Messrs. Munn & Co., Solicitors of Patents, have had nearly fifty years' continuous experience. Any one may quickly ascertain, free, whether an invention protBbly ta patentable by writing to Munn Co. Communications strictly confidential. A handbooli of intents and bow to obtain them sent free. taken through Munn Go. receire special notice in the Saimtiflc American. This splendid weekly paper, elegantly illustrated, has the largest circulation of any scientific work. 93 a year. Specimen copies free. Address MUNN CO., New york, 361 Broadway.
This article was originally published with the title "Patents" in SA Builders 21, 2build, 79 (February 1896)