Document Type and Number:
Japanese Patent JPS6226821
Kind Code:
Y2
Application Number:
JP16290479U
Publication Date:
July 09, 1987
Filing Date:
November 24, 1979
Export Citation:
International Classes:
G11B15/02; G11B15/66; G11B15/675; (IPC1-7): G11B15/02
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