Pupin himself was a graduate of the Class of 1883 and the inventor of the " Pupin coil ", a device that extended the range of long-distance telephones.
2.
Pupin was also a brilliant inventor, developing methods for rapid x-ray photography and the " Pupin coil, " a device for increasing the range of long-distance telephones.
3.
Loading coils are historically also known as "'Pupin coils "'after Mihajlo Pupin, especially when used for the Heaviside condition and the process of inserting them is sometimes called " pupinization ".
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