Patents

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MESSRS. MUNN & CO., in connection with the publication of the SCIENTIFIC AMERICAN, continue to examine Improvements, and to act as Solicitors of Patenr.8 for Inventors. In this line of business they have had thirty-five years' experience, and now have vnegualed facilities for the preparation of Patent Drawings, Specifications, and the prosecution of Applications for Patents in the United States, Canada, and Foreign Countries. Messrs. Muim & Co. also attend to the preparation of Caveats, Copyrights for Books. Labels, Reissues, Assignments, and Reports on Infringements of Patents. AJI business intrusted to them is done with special care and promptness, on very reasonable terms. A pamphlet sent free of charge, on application, containing full information about Patents and how to pro cre them; directions concerning Labels, Copyrights, Designs, Patents, Appeals. Reissues, infringements, Assignments, Rejected Cases, Hints on the Sale of Patents, etc. We also send. free (f clutroe. a Synopsis of Foreign Patent Laws, showing the cost and method of securing patents in all the principal countries of the world. MUNN &; CO., .Solltlitors of Patents, 261 mdway, New York. BRANCH OFFICE -Comer of F and 7th Streets, Washington, D. C.

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