Patents- February 1, 1890

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MESSRS. MUNN & CO., in connection with the publication of the SCIENTIFIC AMERICAN, continue to ex. amine improvements, and to act as Solicitors of Patents for Inventors. In this line of business they have bad forty-one years' experience,, and now have unequaled facuities 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, ReiBsues, Assignments, and lie ports on Infringement 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-tainfng fall information about Patents and how to procure them; directions concerning Labels, Copyrights, Designs, Patents, Appeals, Reissues, Infringements, Assignments, Rejected Cases. Hints on the Sale of Patents, etc. We also send, fret of charge, a Synopsis of Foreign Patent Laws, showing the cost and method of securing patents in all the principal countries of the world. MUNN c CO., Solicitors of Patents, 361 Broadway, New York. BRANCH OFFICB8.-NO. 622 and 624 P Street, Pa-9t0o3nUdloff, near 7th Street, Washington, D. C.

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