Document Type and Number:
Japanese Patent JPS52144663
Kind Code:
U
Application Number:
JP5125476U
Publication Date:
November 02, 1977
Filing Date:
April 26, 1976
Export Citation:
International Classes:
H01J31/15; H01J29/02; (IPC1-7): H01J29/02
Domestic Patent References:
| JPS5029275A | 1975-03-25 | |||
| JPS51118959A | 1976-10-19 |