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Document Type and Number:
Japanese Patent JPS5221720
Kind Code:
B2
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JPS6046525[Title of the Invention] A manufacturing process of high coercive force Co content granular magnetite-particles powder provided with magnetic stability
Application Number:
JP9851172A
Publication Date:
June 13, 1977
Filing Date:
September 30, 1972
Export Citation:
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International Classes:
C01G49/08; C01G49/02; G11B5/706; H01F1/11



 
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