Patents

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MESSRS. MUNN & CO., in connection witli tlie publication of the SCIENTIFIC AMERICAN, continue to examine Improvements, and to act as Solicitors of Patents for Inventors. In this line of business they have had Thirty-eight years experience, and now have vnegmled facilities for the preparation of Patent Drawings, Specifications, and the prosecution of Applications for Patents in the United States, Canada, and Foreign Countries. Messrs. Munn Co. also attend to the preparation of Caveats, Copyrights for Books, Labels, Reissues, Assignments, and Reports on Infringements of Patents. All business intrusted to them is done with special care and promptness, on very reasonable terms. A pamphlet sent free of charge, on application, con-taininfull information about Patents and how to pro cure them; directions coneeming Labels, Copyrights, Designs. Patents, Appeals, Reissues, Infringements, Assignments, Rejected Cases, Hints on the Sale of Patents, etc. We also send, free of charge, a Synopsis of Foreign Patent Laws, showing the cost and method of securing patents inlall the principal countries of the world. OTUNN ? CO., Solleltors of Patents, aet Broadway, New York. BRANCH OFFICE -Corner of F and 7th Streeta, Washington, D. C.

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