Rollins, William Herbert, 1852-1929 · Boston : The University Press · leaf 572
Tio-.o .Scale -J- NOTE 137 —FIGURE 4 —A GLASS CELL OF THE SECONDARY OF AN INTERCHANGEABLESECTION INDUCTION COIL. TWO COILSMAKING ONE SECTION ARE SHOWN IM-BEDDED IN INSULATING MATERIAL Plate 62
X-rays · Phototherapy
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