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Document Type and Number:
Japanese Patent JPS4943900
Kind Code:
A
More Like This:
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Application Number:
JP8819572A
Publication Date:
April 25, 1974
Filing Date:
September 01, 1972
Export Citation:
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International Classes:
C01G49/08; H01F1/11; C01G49/06; (IPC1-7): C01G49/06



 
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