MESSRS. Munn & Co, Solicitors of Patents. have had nearly fifty years' continuous experience. Any ODe may quickly ulcertain, free, whether an inven t i on probably is patentable by writing to Munn & Co: Com:unicatio oo strictly confidential. A haa nd book of patents and how to obtain them sent free. t ak eu t h r o n g h Munn & Co. receive special notice in the Scientific American. This splendid ;eely paper, Clegantly illustrated, has the largest circulation of any scientific work. f3 a year. Specimen copies free. Addrss MUNN & CO., NewYork, 361 Broadway.
This article was originally published with the title "Patents" in SA Supplements 38, 989supp, 383 (December 1894)