Document Type and Number:
Japanese Patent JPS49130818
Kind Code:
U
Application Number:
JP2900373U
Publication Date:
November 11, 1974
Filing Date:
March 08, 1973
Export Citation:
International Classes:
G11B23/02; G06K19/00; G06K19/04; G11B23/03; G11B23/04; G11B25/04; (IPC1-7): G11B25/04; G06K19/00; G11B23/02; G11B23/04