Document Type and Number:
Japanese Patent JPS5699756
Kind Code:
U
Application Number:
JP18331479U
Publication Date:
August 06, 1981
Filing Date:
December 28, 1979
Export Citation:
International Classes:
H01J7/24; H01J29/86; H01J31/26; H01J31/28; (IPC1-7): H01J29/86; H01J7/24; H01J31/26
Domestic Patent References:
JPS3927965Y1 |