Invention Grant
- Patent Title: Cathode ray sweep circuit
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Application No.: US6560636Application Date: 1936-02-25
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Publication No.: US2209199APublication Date: 1940-07-23
- Inventor: FRANK GRAY
- Applicant: BELL TELEPHONE LABOR INC
- Assignee: Nokia Bell Labs
- Current Assignee: Nokia Bell Labs
- Priority: US6560636 1936-02-25
- Main IPC: H03K4/12
- IPC: H03K4/12 ; H03K6/02
Information query
IPC分类:
