Patents

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MESSES. MUNN & CO.. in connection with the 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-five years' experience, and now have vneqitaled 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. Lahels. Reissues, Assignments, and Reports on Infringements of Patents. AJl 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 ahout Patents and how to procure them; directions concerning Isabels, Copyrights. Designs, Patents, Appeals, Reissues. Infringements, Assignments, Rejected Cases, Hints on the Sale of Patents, etc. We also send. /ree of charge. a Synopsis of Foreign Patent Laws, showing the cost and method of securing patents in all the principal countries of the world. OTUNN & CO., Solicitors of Patents, 261 Broadway, New York. BRANCH OFI'WE -Corner of F and 7th Streets, -Washington. D. C.

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