Dental and oral radiography : a text book for students and practitioners of dentistry (1916)
McCoy, James David · St. Louis : Mosby · leaf 62
SYhCHOQt.riuS MOTOR … Fie. 21. The working principles of the interrupterless transformer are hereshown. The synchronous motor used to operate the rectifying switch of thealternating current machine may also be used as a rotary converter wherethe direct current is desired for other purposes in the laboratory. 60 DENTAL…
Radiography, Dental · X-rays · Teeth · Mouth
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
