Improved matrixes and decoders for quadruphonic records

IL38277A0Inactive Publication Date: 1972-02-29COLUMBIA BROADCASTING SYSTEM INC
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Patent Information

Application Number
IL38277
Authority / Receiving Office
IL · IL
Patent Type
Applications
Current Assignee / Owner
Priority Date
1971-02-03
Filing Date
1971-12-01
Publication Date
1972-02-29
Estimated Expiration
Not applicable · inactive patent
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