Patents

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CAVEATS, TRADE MARKS, COPYRIGHTS, ETC. Messrs. Munn Co., in connection with the publication of THE SCIENTIFIC AMERICAN, continue to examine Improvements, and to act as Solicitors of Patents for Inventors. lathis line of business they have had over THIRTY-FIVE YEAES' EXPERIENCE, and now have unequaled facilities for the preparation of Patent Drawings, Specifications, and the prosecution of Applications for Patents in the United State?, Canada, and Foreign Countries. Messrs. Munn Co. aleo attend to the preparation of Caveats, Trade Marks, Cipyrighta for Books, Labels, Reissues, Assignments, and Reports on Infringements 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-la ning 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 Patents, ete. 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. MUNN CO., Solicitors of Patents, 37 Park Row, New Xork. BRANCH OFFICE-Corner of F and Tit"Streets, Washington, D. C.ON

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