Patents!- April 18, 1891

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MESSRS. MUNN & CO., in connection witb the publication of the SCIENTIFIC AMEiticAX, continue to examine improvements, and to act as SoliCitors of Pateuts for inventors. In this line of business they have had Jnr tywone years' experience. and now have tl1uqlwlel i fncilitus for the preparation of Patent Drawings, Specifications, and the proseclJtion of Applicatic,ns tor Patents in the United 8tates. Canada. and Korean 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 done with special care and pl'omptness, on very reasonable terms. A pamphlet sent free of charue, on applicatwn, containing full information 'about Patents and how to prow 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 &ecnriDg patents in all the prinCipal countries of the world. MUNN & CO., Solicitor8 of Patents, 361 Broadway. New York. BRANCH OFFICES.--No. 622 and 624 F Street, Pa-cifl* Building, near 7th Street, Washington, D, C.

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