Application of magneto-electricity, &c. to baths : letters patent to Geminiano Zanni, of Highbury, in the county of Middlesex, medical electrician, for the invention of "Improvements relating to the application of magneto-electricity to swimming and other baths for curative and anaesthetic purposes" : Sealed the 27th April 1877, and dated the 1st November 1876.

Licence: Public Domain Mark

Credit: Application of magneto-electricity, &c. to baths : letters patent to Geminiano Zanni, of Highbury, in the county of Middlesex, medical electrician, for the invention of "Improvements relating to the application of magneto-electricity to swimming and other baths for curative and anaesthetic purposes" : Sealed the 27th April 1877, and dated the 1st November 1876. Source: Wellcome Collection.