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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS5563170
Kind Code:
U
Application Number:
JP14742478U
Publication Date:
April 30, 1980
Filing Date:
October 26, 1978
Export Citation:
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International Classes:
H01L33/56; H01L33/60; H01L33/62; (IPC1-7): H01L33/00