THERMOPHONES. The Atlanta Exhibition. MISCELLANEOUS INVENTIONS. thium. MAGNETIC THERMOPHONE WITH REFLECTING DIAPHRAGM TRANSMITTER. MAGNETIC THERMOPHONE WITH MANOMETRIC FLAME TRANSMITTER. THERMOPHONE WITH THE RMO-ELECTRIC RECEIVER AND REF DIAPHRAGM TRANSMITTER. LECTING THERMOPHONE WITH THERMO-ELECTRIC RECEIVER AND TRANSMITTER. MANOMETRIC FLAME, scientific american, 1881-05-28

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