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Subject Terms

SUBJECTS
    Names:
    • Bedell, Frederick, 1868-1958.
    • California Institute of Technology.
    • Cornell University. Department of Physics.
    • Yale University--Students.
    Subjects:
    • Physics--Study and teaching.
    • Hearing.
    • Hearing aids.
    • Bone conduction.
    • Oscilloscopes.
    • Electric measurements.
    • Electricity--Experiments.
    • Electric currents, alternating.