Invention Grant
- Patent Title: Rotary high-frequency switching circuit
- Patent Title (中): 旋转式高频开关电路
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Application No.: US55019644Application Date: 1944-08-19
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Publication No.: US2445793APublication Date: 1948-07-27
- Inventor: NATHAN MARCHAND
- Applicant: STANDARD TELEPHONES CABLES LTD
- Assignee: Wellman Inc
- Current Assignee: Wellman Inc
- Priority: US55019644 1944-08-19
- Main IPC: H01P1/12
- IPC: H01P1/12
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