Document Type and Number:
Japanese Patent JPH0590
Kind Code:
B2
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Inventors:
OKUMURA SHIGEKI
Application Number:
JP11635490A
Publication Date:
January 05, 1993
Filing Date:
May 02, 1990
Export Citation:
Assignee:
OKUMURA TETSUKO JUGEN
International Classes:
C04B33/02; B01F9/00
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