VALVES OF STEAM-ENGINES. STEAM PUMPS. MOLDING-MACHINE. COFFINS. BEE-HIVE. CAST-STEEL PLOWS. MACHINE FOR CUTTING OUT BOOT AND SHOE SOLLS. IMPROVEMENTS IN ELECTRO-MAGNETIC TELEGRAPHS. MANUFACTURE OF ILLUMINATING GAS. GASKETS FOR STEAM AND OTHER JOINTS. CHROMATIC KEY-BOARD FOR PIANO-FORTES. HYDRAULIC ENGINE., scientific american, 1859-10-22
VALVES OF STEAM-ENGINES. STEAM PUMPS. MOLDING-MACHINE. COFFINS. BEE-HIVE. CAST-STEEL PLOWS. MACHINE FOR CUTTING OUT BOOT AND SHOE SOLLS. IMPROVEMENTS IN ELECTRO-MAGNETIC TELEGRAPHS. MANUFACTURE OF ILLUMINATING GAS. GASKETS FOR STEAM AND OTHER JOINTS. CHROMATIC KEY-BOARD FOR PIANO-FORTES. HYDRAULIC ENGINE., scientific american, 1859-10-22
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