Document Type and Number:
Japanese Patent JPS4974136
Kind Code:
U
Application Number:
JP12048672U
Publication Date:
June 27, 1974
Filing Date:
October 17, 1972
Export Citation:
International Classes:
H01J29/82; H01J29/76; (IPC1-7): H01J29/76
Domestic Patent References:
| JPS4817862U | 1973-02-28 | |||
| JPS4921415U | 1974-02-23 |