Electrodes for the local application of high frequency currents in case

Made:
1850-1920 in France
maker:
Eugene Ducretet
Electrodes for the local application of high frequency currents

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Electrodes for the local application of high frequency currents
Science Museum Group
© The Board of Trustees of the Science Museum

Electrodes for the local application of high frequency currents in case, made by E. Ducretet, French, 1850-1920