Document Type and Number:
Japanese Patent JPS55169051
Kind Code:
U
Application Number:
JP6860179U
Publication Date:
December 04, 1980
Filing Date:
May 22, 1979
Export Citation:
International Classes:
H01J7/22; G09F9/313; H01J11/46; H01J11/48; H01J11/50; H01J11/54; (IPC1-7): H01J7/22; H01J11/02; H01J17/16