Document Type and Number:
Japanese Patent JPS4920831
Kind Code:
Y1
Application Number:
JP5297670U
Publication Date:
June 04, 1974
Filing Date:
May 30, 1970
Export Citation:
International Classes:
G10B3/00; G10C1/06; G10C3/02; G10H1/00; (IPC1-7): G10C3/02; G10B3/00; G10H1/00