Patents - March 20, 1886

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MESSRS.MUNN & co., In connection with tbe publi -cation of the Scientific AmIRcan, continue to examine .mprovements, and to act as Solicitors o! Eatent8 for Inventors. In this line of business they have forty years' experirience o d now nave unequalled facilities for the preparation of Patent DraW ings, SpeCifications, and the rosecution of Applica tions for Patenfts in the United tates, Gj*da, and Foreign Countries. Messrs Munn & Co. also fend to the preparation of Caveats. Copyrights for Books, Labels, Reissues. Assignme.ts. ad Reports on Infringements of Patents. All business intrusted to them is gne ;ith sPecial care and promptness, on very ;easonable terms. . A pamphlet sent free of charge, on application, con. taini' full information about Patentj : nd how to \ tocu:e them; directions concerni:g Labels, Cg;yright:, DeSigns, Patents, Appeals, Reissues, Infringements, Assignments, Rejected Cases, Hints on the Sale of Pa-tent8. etc Wealso sand, free of c7e, a SyOPSIS of Foreign Patent I,aws, shaHtajur the cost and method of securing patents in all tH principal countries of the world. DUNN & CO., Sollcltors of Patents, 3 Broadway. New York. BRANCH OFFICES.-No. 623 and 624 F Street, PaeWe Building, near 7th Street. Washington, D. C.

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