Document Type and Number:
Japanese Patent JPS5248808
Kind Code:
B2
Application Number:
JP9189872A
Publication Date:
December 13, 1977
Filing Date:
September 13, 1972
Export Citation:
International Classes:
G11B5/127; G11B5/187; G11B5/23; G11B5/265; (IPC1-7): G11B5/27; G11B5/12; G11B5/42