Document Type and Number:
Japanese Patent JPS5059905
Kind Code:
U
Application Number:
JP11451173U
Publication Date:
June 03, 1975
Filing Date:
October 01, 1973
Export Citation:
International Classes:
G11B3/00; H04H20/89; H04S3/00; (IPC1-7): H04H5/00; G11B3/00