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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS56123549
Kind Code:
U
Application Number:
JP2094080U
Publication Date:
September 19, 1981
Filing Date:
February 20, 1980
Export Citation:
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International Classes:
H01L21/52; H01L21/58; (IPC1-7): H01L21/58



 
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