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2806904
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Information
Patent Grant
2806904
References
Source
Patent Number
2,806,904
Date Filed
Not available
Date Issued
Tuesday, September 17, 1957
66 years ago
CPC
G01R13/04 - for producing permanent records
G11B5/0275 - Boundary displacement recording
G11B5/4907 - Details for scanning
G11B9/00 - Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00 Record carriers therefor
Y10S101/37 - Printing employing electrostatic force
US Classifications
360 - Dynamic magnetic information storage or retrieval
101 - Printing
G9B - INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
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