An elementary book on electricity and magnetism and their applications (1919)
Jackson, Dugald C. (Dugald Caleb), 1865-1951, Jackson, John Price, b. 1868, Black, Newton Henry, b. 1874 · New York, The Macmillian Co · leaf 286
Fig. 17S. Motor-driven washing machineand wringer. Fig. 177.— Motor-driven com-pressor for small refrigerator. of church organs, drivingventilating fans in largebuildings, driving pumpsused in a great varietyof service, operating con-tractors hoists used inthe construction of largebuildings,…
Electricity · Magnetism
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