I English Patents Issued to Americans. 1 EXPORT EDITION. PUBLISHED MONTHLY. NOW READY. GENERAL TABLE OF CONTENTS paper. Inside Pitae each insertion 75 cents aline. [OFFICIAL. INDEX OF INVENTIONS Letters Patent of the United States were Granted in the Week Ending June 4 1878 AND EACH BEARING THAT DATE., scientific american, 1878-08-17

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I English Patents Issued to Americans. 1 EXPORT EDITION. PUBLISHED MONTHLY. NOW READY. GENERAL TABLE OF CONTENTS paper. Inside Pitae each insertion 75 cents aline. [OFFICIAL. INDEX OF INVENTIONS Letters Patent of the United States were Granted in the Week Ending June 4 1878 AND EACH BEARING THAT DATE., scientific american, 1878-08-17

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