Patents- January 18, 1890

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MESSRS LIS. 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 had fwiy-one years' exprience, and now have unequaled facthtws 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 donewith special care and promptness, on very reasonable terms. A pamphlet sent free of charge, on application, containing full 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 Pa- 6We 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. MNN & CO., Solicitor of Patents, 361 Broadway, New York. BRANCH OFFICES.--No. 622 and 624 F Street, Pa-ptflc Building, sear 7th Street, Washington, D C.

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