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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS6255616
Kind Code:
B2
Inventors:
UEMA TOORU
USAMI JUN
Application Number:
JP4597279A
Publication Date:
November 20, 1987
Filing Date:
April 17, 1979
Export Citation:
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Assignee:
NGK INSULATORS LTD
International Classes:
G01N27/26; G01N27/409; G01N27/42; G05D21/00