THE AMMONIA ICE-MAKING PROCESS. IMPROVED STEAM PUMP. DR. BROWN SEQIYARD ON NERVE FORCE. IMPROVED AMMONIA ICE-MAKING MACHINE. THE JOHN HARDICK NIAGARA STEAM PUMP., scientific american, 1874-04-18


THE AMMONIA ICE-MAKING PROCESS. IMPROVED STEAM PUMP. DR. BROWN SEQIYARD ON NERVE FORCE. IMPROVED AMMONIA ICE-MAKING MACHINE. THE JOHN HARDICK NIAGARA STEAM PUMP., scientific american, 1874-04-18


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