Rollins, William Herbert, 1852-1929 · Boston : The University Press · leaf 586
NOTE 137 —FIGURE 11—WINDING A SECOND-ARY COIL, FORMING ONE HALF OF ASECTION OF THE SECONDARY OF AN IN-DUCTION COIL WITH INTERCHANGEABLESECONDARY SECTIONS … NOTE 137 —FIGURE 12 —TYING A SECONDARYCOIL AFTER WINDING, THE COIL FORM-ING ONE HALF OF A SECTION OF THESECONDARY OF AN INDUCTION COIL HAV-ING INTERCHANGEABLE SECTIONS IN THESECONDARY Plate 69
X-rays · Phototherapy
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