Invention Grant
- Patent Title: Oscillation-responsive device.
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Application No.: US1906296932Application Date: 1906-01-20
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Publication No.: US824638APublication Date: 1906-06-26
- Inventor: FOREST LEE DE
- Applicant: FOREST LEE DE
- Assignee: Lee De Forest
- Current Assignee: Lee De Forest
- Priority: US1906296932 1906-01-20
Information query
