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Patent Searching and Data


Document Type and Number:
Japanese Patent JPH03120030
Kind Code:
U
Application Number:
JP2869490U
Publication Date:
December 10, 1991
Filing Date:
March 20, 1990
Export Citation:
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International Classes:
H01L21/205; H01L21/31; (IPC1-7): H01L21/205; H01L21/31



 
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