Messrs. Munn & Co , Solicitors of Patents. have had nearly fifty years' continuous experience. Any one may quickly certain, free, whether an invention probably is patentable by writint Egnn Commnnication. strictly confidential. handboo: ot f atente and how tO obtain tgem sent fre:: taken through Munn & Co. receive-special notice in the Scie e tific Amrican. Thif spiendid weekly paper, elegantly illustrated, has the largest cirCulation of any scientific work. tCI a year. Sspsecilmen copies f.ree. Address MUNN & CO , New York, 361 Broadway
This article was originally published with the title "Patents" in SA Supplements 36, 930supp, 288 (October 1893)
doi:10.1038/scientificamerican10281893-14870dsupp