Document Type and Number:
Japanese Patent JPS5435851
Kind Code:
U
Application Number:
JP10877177U
Publication Date:
March 08, 1979
Filing Date:
August 16, 1977
Export Citation:
International Classes:
H01J31/15; H01J1/18; H01J29/02; H01J29/04; (IPC1-7): H01J29/02; H01J1/18