Document Type and Number:
Japanese Patent JPS51101910
Kind Code:
U
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Application Number:
JP2111275U
Publication Date:
August 16, 1976
Filing Date:
February 14, 1975
Export Citation:
International Classes:
G03B31/00; G03B31/02; G11B5/02; G11B20/04; G11B31/00; (IPC1-7): G11B5/033; G03B31/02; G11B31/00