MESSRS. MUNN CO., in connection with the publication of the SCIENTIFIC AMERICAN, continue to examine im provements, and to act 8S SoliCitors of Patents for Inventors. In this line of business they have had forty-one years' experience, and now have unequaled facilities for the preparation of Patent Drawings, Specifications, and the prosecution of AppJications for Patents in the United States. Canada. and Iforeign Countries. Messrs. Munn Co. also attend to the preparatjon of Caveats. Copyrights for Books, Labels, Reissnes, Assignments, and Reports on Infringements of Patents. AH businesb intrusted to them is done with speCial care and promptness, on very reasonable terms. A pamphlet terms.sent free of charge, on application, con-tflfaing full information about Patents and bDW to procure them; directions concerning Labels, Copyrights, Designs, Patents, Appeals, Reissues, Infringements, Assignments. Rejected Cases. Hints on the Sale of Pa. tents, etc. We also send, etc.freeoj charge, a Synopsis of Foreign Patent IJ3WS. showing the cost and method of securing patents in all the principal countries of the world. MUNN CO., Solicitors of Patents, 361 Broadway, New York. BRANCH Ob FICES.-No, 622 and 624 F Street, Pa-ClfloBuUdigg, near 7tU Street, Washington, U C.
This article was originally published with the title "Patents" in SA Supplements 29, 732supp, 32 (January 1890)