Title:
Electroacoustic transducer
United States Patent 3222462
Inventors:
Richard, Karmann
Helmut, Hoffmann
Otto, Brunnert
Publication Date:
12/07/1965
Export Citation:
Click for automatic bibliography generation
Assignee:
SIEMENS AG
Primary Class:
381/426
Other Classes:
310/331, 310/334
International Classes:
G10K9/122; H04R7/18; H04R7/22; H04R17/00; G10K9/00; H04R7/00; H04R17/00
View Patent Images:
Download PDF 3222462        PDF help
Other References:
None