Document Type and Number:
Japanese Patent JPS5081157
Kind Code:
U
Application Number:
JP13785173U
Publication Date:
July 12, 1975
Filing Date:
November 29, 1973
Export Citation:
International Classes:
H01J5/46; H01J5/44; (IPC1-7): H01J5/44
Foreign References:
| US3017451A | 1962-01-16 |