COMMUNICATIONS RECEIVED. English Patents Issued to Americans. NEW PATENT LAW FOR Spain Cuba Porto Ric etc. T. 7 IV IV t . Solicitors of American and Foreign Patents 37 PARK ROW NEW YORK. CAVEATS COPYRIGHTS TRADE MARKS ETC. & CO. 37 Park Row N. Y. Letters Patent of the United States were Granted in the Week Ending October 1 1878 AND EACH BEARING THAT DATE. INDEX OF INVENTIONS, scientific american, 1878-11-30
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