Document Type and Number:
Japanese Patent JPS5146015
Kind Code:
Y2
Application Number:
JP10807771U
Publication Date:
November 08, 1976
Filing Date:
November 18, 1971
Export Citation:
International Classes:
G03B31/00; G03B23/02; G03B31/06; G11B15/66; G11B15/675; G11B23/04; G11B23/44; G11B31/00; (IPC1-7): G11B23/04; G03B23/02; G03B31/00