Document Type and Number:
Japanese Patent JPS5193204
Kind Code:
U
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Application Number:
JP12846975U
Publication Date:
July 26, 1976
Filing Date:
September 18, 1975
Export Citation:
International Classes:
G03B31/06; G03B21/00; G11B3/68; G11B23/44; (IPC1-7): G11B3/68; G03B21/00