Document Type and Number:
Japanese Patent JPS5620838
Kind Code:
Y2
Application Number:
JP10154776U
Publication Date:
May 18, 1981
Filing Date:
July 28, 1976
Export Citation:
International Classes:
G06F15/02; G06F1/00; G09F9/00; H01J7/00; H01J29/90; (IPC1-7): G06F15/02; G09F9/00; H01J7/00