Document Type and Number:
Japanese Patent JPS3926871
Kind Code:
Y1
Application Number:
JP2451864U
Publication Date:
September 12, 1964
Filing Date:
March 14, 1964
Export Citation:
International Classes:
H01J17/30; H01J17/06; H01J17/38; (IPC1-7): H01J17/06; H01J17/30