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3647540
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Information
Patent Grant
3647540
References
Source
Patent Number
3,647,540
Date Filed
Not available
Date Issued
Tuesday, March 7, 1972
52 years ago
CPC
G11B5/70636 - CrO2
C01G37/00 - Compounds of chromium
C01G37/006 - Compounds containing, besides chromium, two or more other elements, with the exception of oxygen or hydrogen
H01F1/0313 - Oxidic compounds
C01P2004/22 - with a polygonal circumferential shape
C01P2004/54 - Particles characterised by their aspect ratio
C01P2004/61 - Micrometer sized
C01P2006/42 - Magnetic properties
Y10T428/249921 - Web or sheet containing structurally defined element or component
US Classifications
428 - Stock material or miscellaneous articles
252 - Compositions
G9B - INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
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