Document Type and Number:
Japanese Patent JPS4721550
Kind Code:
U
More Like This:
Application Number:
JP1156371U
Publication Date:
November 10, 1972
Filing Date:
February 25, 1971
Export Citation:
International Classes:
H01J23/15; H01J23/14; H01J25/50; H04B15/00; (IPC1-7): H01J23/14; H01J25/50; H04B15/00
Other References:
PROC. IEE#N1=1964