Document Type and Number:
Japanese Patent JPH0521716
Kind Code:
Y2
Application Number:
JP7548087U
Publication Date:
June 03, 1993
Filing Date:
May 20, 1987
Export Citation:
International Classes:
G11B5/56; G11B5/55; G11B15/29; G11B15/44; (IPC1-7): G11B15/44
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