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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS6248658
Kind Code:
U
Application Number:
JP14000385U
Publication Date:
March 25, 1987
Filing Date:
September 12, 1985
Export Citation:
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International Classes:
H01J37/244; (IPC1-7): H01J37/244
Domestic Patent References:
JPS5514683A1980-02-01
JPS56132756A1981-10-17