Battery-powered a.c. electrotherapy apparatus
- Made:
- 1870-1910
Battery-powered a.c. electrotherapy apparatus, invented by Halse of London, c.1890, for nervous complaints, rheumatism etc., English, 1870-1910
Battery-powered a.c. electrotherapy apparatus, invented by Halse of London, c.1890, for nervous complaints, rheumatism etc., English, 1870-1910