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Patent Searching and Data


Document Type and Number:
Japanese Patent JPH0254507
Kind Code:
B2
Inventors:
KIMURA YUTAKA
ASANO KUNITAKA
NARUSE AKISUKE
Application Number:
JP18917481A
Publication Date:
November 21, 1990
Filing Date:
November 27, 1981
Export Citation:
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Assignee:
HITACHI SEISAKUSHO KK
HITACHI ENJINIARINGU KK
International Classes:
G01N29/04; B23Q9/00; G01N27/82; G01N29/22; G01N29/265; G21C17/003