Document Type and Number:
Japanese Patent JPS6393058
Kind Code:
U
Application Number:
JP18672886U
Publication Date:
June 16, 1988
Filing Date:
December 05, 1986
Export Citation:
International Classes:
H01J29/89; H01J7/26; H01J31/10; (IPC1-7): H01J29/89; H01J7/26; H01J31/10