Invention Grant
- Patent Title: System of duplex wireless transmission.
- Patent Title (中): 双重无线传输系统。
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Application No.: US1908456226Application Date: 1908-10-05
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Publication No.: US1042205APublication Date: 1912-10-22
- Inventor: FOREST LEE DE
- Applicant: FOREST LEE DE
- Assignee: Lee De Forest
- Current Assignee: Lee De Forest
- Priority: US1908456226 1908-10-05
Information query
