COMMUNICATIONS RECEIVED. ll'OR WHICH Letters Patent of the United States were Granted in the Week Ending AND EACH BEARING THAT DATE. Inside Page each insertion -75 cents a line. Back Page each insertion a line. THE FIRST GREAT SALE OF PATENTS AT AUCTION TO MACHINISTS. Extra Quality Clocks. Accuracy and Durability INDEX OF INVENTIONS POCKET COIN DETECTOR., scientific american, 1877-05-26
COMMUNICATIONS RECEIVED. ll'OR WHICH Letters Patent of the United States were Granted in the Week Ending AND EACH BEARING THAT DATE. Inside Page each insertion -75 cents a line. Back Page each insertion a line. THE FIRST GREAT SALE OF PATENTS AT AUCTION TO MACHINISTS. Extra Quality Clocks. Accuracy and Durability INDEX OF INVENTIONS POCKET COIN DETECTOR., scientific american, 1877-05-26
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