Document Type and Number:
Japanese Patent JPH0496960
Kind Code:
U
More Like This:
Application Number:
JP9071991U
Publication Date:
August 21, 1992
Filing Date:
November 06, 1991
Export Citation:
International Classes:
H01J29/94; H01J5/60; H01J7/18; H01J29/02; (IPC1-7): H01J29/94
Next Patent: JPS496961