Document Type and Number:
Japanese Patent JPS552342
Kind Code:
U
Application Number:
JP8499978U
Publication Date:
January 09, 1980
Filing Date:
June 20, 1978
Export Citation:
International Classes:
G09B15/04; A63B5/00; G10H1/00; G10H1/34; (IPC1-7): A63B23/04; G09B15/00; G10D17/00