Document Type and Number:
Japanese Patent JPS5361167
Kind Code:
U
Application Number:
JP14241876U
Publication Date:
May 24, 1978
Filing Date:
October 25, 1976
Export Citation:
International Classes:
H01J23/087; H01J23/08; (IPC1-7): H01J23/08
Domestic Patent References:
| JPS4817791A | ||||
| JPS49126252A | 1974-12-03 |
Foreign References:
| US3755706A | 1973-08-28 | |||
| US3958147A | 1976-05-18 |