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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS5629974
Kind Code:
Y2
Application Number:
JP4343875U
Publication Date:
July 16, 1981
Filing Date:
April 02, 1975
Export Citation:
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International Classes:
H01L27/04; H01L21/76; H01L21/762; H01L21/822; H01L27/02; (IPC1-7): H01L27/02; H01L21/76