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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS556871
Kind Code:
B2
Application Number:
JP5977776A
Publication Date:
February 20, 1980
Filing Date:
May 22, 1976
Export Citation:
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International Classes:
G01R23/06; G01P3/489; G01R23/02; G01R23/10; H03K9/06