Document Type and Number:
Japanese Patent JPS5428409
Kind Code:
U
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Application Number:
JP10067277U
Publication Date:
February 24, 1979
Filing Date:
July 29, 1977
Export Citation:
International Classes:
G11B5/80; G03B31/04; G06K19/00; G11B23/44; (IPC1-7): G11B23/48; G03B31/04; G06K19/00; G11B5/80