Rollins, William Herbert, 1852-1929 · Boston : The University Press · leaf 542
NOTE ii2 —FIGURE 83 —A STATIC MACHINEDRIVEN BY A GASOLINE ENGINE Plate 46 … NOTE ii2 —FIGURE 84 —A NON-RADIABLE x-light tube-holder with an adjust-able diaphragm plate, a tesla screen,And a heating attachment to lowerthe starting resistance of an x-light TUBE Plate 47
X-rays · Phototherapy
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