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2033479
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Patent Grant
2033479
References
Source
Patent Number
2,033,479
Date Filed
Not available
Date Issued
Tuesday, March 10, 1936
89 years ago
CPC
H04R19/06 - Gramophone pick-ups using a stylus Recorders using a stylus
US Classifications
369 - Dynamic information storage or retrieval
313 - Electric lamp and discharge devices
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