. Radiography, X-ray therapeutics and radium therapy . FlG. 19.—Single-point electrolyticinterrupter. (Siemens.) «, Glass vessel. b, Porcelain diaphragm. c, Adjustable ebonite collar. d, Terminal. e, Lead Fig. 20. -Three-point electrolytic interrupter.(Siemens.)

---

Size: 1586px × 1575px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bo, bookauthorknoxrobert18681928, bookcentury1900, bookdecade1910