The electric current : how produced and how used / by R. Mullineux Walmsley.

  • Walmsley, R. Mullineux (Robert Mullineux)
Date:
1894
Catalogue details

Licence: Public Domain Mark

Credit: The electric current : how produced and how used / by R. Mullineux Walmsley. Source: Wellcome Collection.

    610/800 (page 594)
    FIG. 295 the RECEIVER oe the “TAPE ” PRINTING TELEGRAPH-