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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS4328604
Kind Code:
Y1
Application Number:
JP7892366U
Publication Date:
November 25, 1968
Filing Date:
August 19, 1966
Export Citation:
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International Classes:
H01J31/20; H01J29/07; H01J29/28; (IPC1-7): H01J29/28; H01J29/07; H01J31/20