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 tMrty-fiw years' experience, and now have vneqiurtecl facilities for the preparation of Patent Drawings, Specifications, and the prosecution of Applications for Patents in the United States, Canada, and Foreign Countries. Messrs. Mimn Co. also attend to the preparation of Caveats, Copyrights for Books, Labels, Reissues, Assignments, and Eeports on Infringements of Patents. Ail 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 cure, them; directions concerning 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 in all the principal countries of the world. M1J1V1V CO., Solicitors of Patents, 261 Broadway, New York. BRANCH OFFICE -Comer of F and tth Stteete, Washington, D. C.

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