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Patent Searching and Data


Document Type and Number:
Japanese Patent JPH0260980
Kind Code:
B2
Inventors:
ASANO KUNITAKA
NAKADA AKIRA
KIMURA YUTAKA
NAKANO YUTAKA
SHIBUYA SADAO
Application Number:
JP20350281A
Publication Date:
December 18, 1990
Filing Date:
December 18, 1981
Export Citation:
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Assignee:
HITACHI SEISAKUSHO KK
HITACHI ENJINIARINGU KK
International Classes:
G01N29/04; B23Q9/00; G01N27/82; G01N29/26; G01N29/265; G21C17/003