NEW BOOKS AND PUBLICATIONS. APPLICATIONS FOR THE EXTENSION OF PATENTS. Inventions Patented in England by Americans. 50000 INVEDITIONS MUNN & C Specifications and Drawings for Patents Caveats Ho. issues Designs Trade Marks Extensions Interferences and Assignments. FOREIGN PATENTS REISSUES INTERFERENCES HINTS ON SELLING PATENTS RULES AND PROCEEDINGS AT THE UNITED STATES PATENT OFFICE THE PATENT LAWS FEES ETC. SEE MUNN & CO. GREAT VALUE, scientific american, 1870-08-27
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