Document Type and Number:
Japanese Patent JPS5242253
Kind Code:
U
Application Number:
JP12962175U
Publication Date:
March 25, 1977
Filing Date:
September 18, 1975
Export Citation:
International Classes:
G12B11/04; G12B11/00; H03J1/04; (IPC1-7): H03J1/04; G12B11/00