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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS5149960
Kind Code:
U
Application Number:
JP12374074U
Publication Date:
April 15, 1976
Filing Date:
October 14, 1974
Export Citation:
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International Classes:
H01L23/48; H01L23/04; H01L23/12; H01L23/28; (IPC1-7): H01L23/04; H01L23/12
Domestic Patent References:
JP45023494A