Document Type and Number:
Japanese Patent JPS5251778
Kind Code:
Y2
Application Number:
JP8728972U
Publication Date:
November 25, 1977
Filing Date:
July 26, 1972
Export Citation:
International Classes:
G10H1/00; G10F1/00; G10H1/34; G10H1/40; H01H21/00; (IPC1-7): G10H1/00