Invention Grant
- Patent Title: Mechanical impedance meter
- Patent Title (中): 机械阻抗计
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Application No.: US66430833Application Date: 1933-04-04
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Publication No.: US2008857APublication Date: 1935-07-23
- Inventor: FLANDERS PAUL B
- Applicant: BELL TELEPHONE LABOR INC
- Assignee: Nokia Bell Labs
- Current Assignee: Nokia Bell Labs
- Priority: US66430833 1933-04-04
- Main IPC: H04R29/00
- IPC: H04R29/00
Information query
