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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS50669
Kind Code:
Y1
More Like This:
JPS585957VACUUM ELECTRONIC DEVICE
JPS55133727ELECTRON TUBE
Application Number:
JP1948469U
Publication Date:
January 10, 1975
Filing Date:
March 06, 1969
Export Citation:
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International Classes:
H01J40/02; H01J43/28; (IPC1-7): H01J39/04



 
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