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(181 - 200 of 233)
Franklin Thomas
High volts lab
R. R. Martel
Franklin Thomas
Charles Crede
High volts lab
Milton Plesset
R. R. Martel, Franklin Thomas and others
Pol E. Duwez
Edward Simmons
Robert Knapp, Theodore von Kármán and Robert Daugherty
Four transformers in Royal Sorensen’s high volts lab
Air view of the LA Aqueduct
Hydrodynamics lab
Starting the turbine at the Pasadena Municipal Lighting Plant
Water column structure necessary as an adjunct in operating x-ray tube
Hydro target
Frederick James Converse