Document Type and Number:
Japanese Patent JPS5455302
Kind Code:
U
Application Number:
JP12923677U
Publication Date:
April 17, 1979
Filing Date:
September 26, 1977
Export Citation:
International Classes:
G11B17/22; G11B17/30; G11B19/26; G11B19/27; (IPC1-7): G11B17/22; G11B19/26