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. 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.)
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Keywords: ., bo, bookauthorknoxrobert18681928, bookcentury1900, bookdecade1910