Invention Grant
- Patent Title: Horn
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Application No.: US66489133Application Date: 1933-04-07
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Publication No.: US2001089APublication Date: 1935-05-14
- Inventor: BLATTNER DAVID G
- Applicant: BELL TELEPHONE LABOR INC
- Assignee: Nokia Bell Labs
- Current Assignee: Nokia Bell Labs
- Priority: US66489133 1933-04-07
- Main IPC: H04R1/34
- IPC: H04R1/34
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