Invention Grant
- Patent Title: Frequency controlled variable oscillator
- Patent Title (中): 变频调速器
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Application No.: US41747554Application Date: 1954-03-19
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Publication No.: US2808509APublication Date: 1957-10-01
- Inventor: FELCH EDWIN P , ISRAEL JOHN O , OSCAR KUMMER
- Applicant: BELL TELEPHONE LABOR INC
- Assignee: Nokia Bell Labs
- Current Assignee: Nokia Bell Labs
- Priority: US41747554 1954-03-19
- Main IPC: H03L7/20
- IPC: H03L7/20 ; H03L7/22
Information query
