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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS51137990
Kind Code:
U
Application Number:
JP5119076U
Publication Date:
November 08, 1976
Filing Date:
April 21, 1976
Export Citation:
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International Classes:
H01J61/24; H01J61/067; H01J61/28; (IPC1-7): H01J61/067
Domestic Patent References:
JPS4920971A1974-02-23
JPS5016380A1975-02-20
Foreign References:
US3548241A1970-12-15