Document Type and Number:
Japanese Patent JPS5651242
Kind Code:
U
Application Number:
JP13549579U
Publication Date:
May 07, 1981
Filing Date:
September 28, 1979
Export Citation:
International Classes:
H01J7/24; H01J23/00; H01J23/033; H01J23/20; H01J23/213; (IPC1-7): H01J23/033; H01J7/24; H01J23/213