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3897999
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Patent Grant
3897999
References
Source
Patent Number
3,897,999
Date Filed
Not available
Date Issued
Tuesday, August 5, 1975
49 years ago
CPC
G11B15/34 - through non-skip drive means
G03B31/02 - in which sound track is on a moving-picture film
US Classifications
352 - Optics: motion pictures
G9B - INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
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