Title:
Hydraulic electromechanical transducer
United States Patent 2565158


Inventors:
Williams, Alfred Leslie W.
Application Number:
US76798747A
Publication Date:
08/21/1951
Filing Date:
08/11/1947
Assignee:
BRUSH DEV CO
Primary Class:
Other Classes:
310/359, 310/367, 310/371, 367/171, 367/174, 381/190
International Classes:
H04R1/42
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US Patent References:
Foreign References:
GB583639A1946-12-23