Document Type and Number:
Japanese Patent JPS5229606
Kind Code:
Y2
Application Number:
JP8868871U
Publication Date:
July 06, 1977
Filing Date:
September 30, 1971
Export Citation:
International Classes:
G11B15/02; G11B15/087; G11B15/44; (IPC1-7): G11B15/02; G11B15/44