Document Type and Number:
Japanese Patent JPS4859007
Kind Code:
U
Application Number:
JP10276071U
Publication Date:
July 26, 1973
Filing Date:
November 04, 1971
Export Citation:
International Classes:
H01J41/20; (IPC1-7): H01J41/20
Foreign References:
| US3540812A | 1970-11-17 |