Document Type and Number:
Japanese Patent JPS57110705
Kind Code:
U
Application Number:
JP18753080U
Publication Date:
July 08, 1982
Filing Date:
December 27, 1980
Export Citation:
International Classes:
G11B33/02; G11B3/38; G11B7/08; G11B21/02; G11B21/04; G11B21/16; G11B21/18; G11B21/22; G11B33/00; (IPC1-7): G11B1/00; G11B21/04; G11B21/16