Spark gap for electrotherapy machine by Heller, Coudray and Co
Spark gap for electrotherapy machine by Heller, Coudray and Co, Paris, 1902
- Measurements:
-
overall: 390 mm x 630 mm x 310 mm,
- Object Number:
- A182715 Pt1
- type:
- spark gaps
- Image ©
- The Board of Trustees of the Science Museum