Document Type and Number:
Japanese Patent JPH0218259
Kind Code:
U
More Like This:
Application Number:
JP9558988U
Publication Date:
February 06, 1990
Filing Date:
July 19, 1988
Export Citation:
International Classes:
H01J29/89; H01J7/26; H01J31/10; (IPC1-7): H01J29/89; H01J7/26; H01J31/10
Next Patent: JPH0218260