Document Type and Number:
Japanese Patent JPS52115219
Kind Code:
U
Application Number:
JP2241976U
Publication Date:
September 01, 1977
Filing Date:
February 28, 1976
Export Citation:
International Classes:
G11B15/26; G11B15/18; G11B15/29; (IPC1-7): G11B15/29; G11B15/18