Document Type and Number:
Japanese Patent JPS4839873
Kind Code:
U
Application Number:
JP8274771U
Publication Date:
May 18, 1973
Filing Date:
September 10, 1971
Export Citation:
International Classes:
G09F9/33; H01L33/30; H01L33/54; H01L33/56; H01L33/62; (IPC1-7): H01L33/00; G09F9/32