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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS5427884
Kind Code:
Y2
Application Number:
JP7570474U
Publication Date:
September 08, 1979
Filing Date:
June 27, 1974
Export Citation:
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International Classes:
H01L23/04; H01L23/02; H01L23/12; (IPC1-7): H01L23/04



 
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