Document Type and Number:
Japanese Patent JPS4972161
Kind Code:
U
Application Number:
JP11708172U
Publication Date:
June 22, 1974
Filing Date:
October 09, 1972
Export Citation:
International Classes:
G06K19/077; B42D15/10; G06K15/00; G06Q40/00; G06Q40/02; H01L23/04; H01L23/08; H01L23/12; H01L23/50; (IPC1-7): H01L23/04