A dictionary of electrical words, terms and phrases (1896)
Houston, Edwin J. (Edwin James), 1847-1914 · New York, The W.J. Johnston company · leaf 78
Fig. qo. FloorPush. Fig. Q2. Buzzer. case of wood in order to strengthen the sound byresonance. A form of buzzer is shown in Fig. 92. C.—An abbreviation for centigrade. ^hus, 20 degrees C. means 20 degrees of thecentigrade thermometric scale. (See Scale, Cen-tigrade Thermometer.) C.—A contraction…
Electricity · Electrical engineering
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