Quadruphonic recording and reproducing system
IL37418A0Inactive Publication Date: 1971-11-29COLUMBIA BROADCASTING SYSTEM INC
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Patent Information
- Application Number
- IL37418
- Authority / Receiving Office
- IL · IL
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 1971-08-01
- Publication Date
- 1971-11-29
- Estimated Expiration
- Not applicable · inactive patent
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