Thermo galvanometer

The thermo-galvanometer is an instrument for measuring small electric currents. It was invented by William Duddell about 1900. The following is a description of the instrument taken from a trade catalog of Cambridge Scientific Instrument Company dated 1905:

单词	Thermo Galvanometer
释义	Thermo Galvanometer 英语百科 Thermo galvanometer The thermo-galvanometer is an instrument for measuring small electric currents. It was invented by William Duddell about 1900. The following is a description of the instrument taken from a trade catalog of Cambridge Scientific Instrument Company dated 1905:
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Thermo Galvanometer

Thermo galvanometer