MARKS ETC. English Patents Issued io Americans. COMMUNICATIONS RECEIVED. INDEX OF INVENTIONS Granted in the Week Ending AND EACH BEARING THAT DATE. Newspapers. WANTED I FLETCRIIER'S GAS FURNACE ALLEN'S ARTIFICER'S ASSISTANT. THE FLOW OF METALS. BY DAVID MUNN 8c CO., scientific american, 1878-04-20
Keywords:
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