Patents- June 13, 1891

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MESSRS. Scientific American, Inc. in connection publication of the SCIENTIFIC AMERICAN, continue to examine improve-ments, and to act as Solicitors of Patents for Inventors In this line f business they have had forty-jive years1 e r,)irrlence, and now have unequaled facilities for the preparation of Patent Drawings, Specifications, and the prosecution of Applications for Patents in the United States, Canada, and Foreign Countries. Messrs. Scientific American, Inc. 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 prompt:ess, 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 Patents, etc. 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. MINN & CO.. Solicitors ot Patents, 36t BroadwaY, New York. BBAHCH OFFICES.-No. 622 and 624 F Street, Pa-Cffic Building, near 7th Street, Washington. D. C.

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