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MESSRS. MUNN &CO., in connection with the putJ. lication of the SCIENTIFIC AMKEICAN, continue to examine Improvements, and to aot as Solicitors of Patents for Inventors. Inthi s line of busmess tliey lia ve had thirty-Hght years' experience, and now have inequaleu facilities for the preparation of Patent Drawmgs, Specifications, and the prosecution of Applications for Patents in the United States, Canada, and Foreign Countries. Messrs. Minm &Co. also attend to the preparation of Caveats, Copyrights for Books , Labels, Reissues, Assignments, and Reports on Infrtafjements of Patents. All busmess intrusted to them is done with special care and promptness, on very reasonable terms. A pamphletilent free of charge , on application, con-raining full InforIIltlon about I'atents 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. free af charge. a Synopsis of Foreign nt Laws, snowing the cost and method of securing patents in all the principal countries of the world. MUNN ; CO., ?t Patente, 361 Broadway, New York. BRANCH OFFICE-- Corner of F and 1th Streets, Washington, D. C.
