Document Type and Number:
Japanese Patent JPH0253094
Kind Code:
B2
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Inventors:
FUJISAWA TETSUO
Application Number:
JP28184585A
Publication Date:
November 15, 1990
Filing Date:
December 14, 1985
Export Citation:
Assignee:
KOBE STEEL LTD
International Classes:
B01J6/00; C04B7/44
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