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3819944
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Patent Grant
3819944
References
Source
Patent Number
3,819,944
Date Filed
Not available
Date Issued
Tuesday, June 25, 1974
50 years ago
CPC
G11C13/048 - using other optical storage elements
G03G5/16 - Layers for recording by changing the magnetic properties
H01F1/0313 - Oxidic compounds
US Classifications
250 - Radiant energy
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