Document Type and Number:
Japanese Patent JPS5690359
Kind Code:
U
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Application Number:
JP17366979U
Publication Date:
July 18, 1981
Filing Date:
December 14, 1979
Export Citation:
International Classes:
H01J37/06; H01J1/02; H01J7/24; H01J37/07; (IPC1-7): H01J7/24; H01J1/02; H01J37/06; H01J37/07
Domestic Patent References:
| JPS476748B1 |