IMPR3VED RAIL-BEARING PLATE. IMPROVED RAIL-BEARING PLATE. Treatment of Roads with Gas Tar. The Piscicelli Taeggi Electric Post. The Current Supplement., scientific american, 1902-10-18

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IMPR3VED RAIL-BEARING PLATE. IMPROVED RAIL-BEARING PLATE. Treatment of Roads with Gas Tar. The Piscicelli Taeggi Electric Post. The Current Supplement., scientific american, 1902-10-18

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