Document Type and Number:
Japanese Patent JPH0154094
Kind Code:
B2
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Inventors:
ECHIGO YOSHIAKI
ISHIKURA TADASHI
ISHIKURA TADASHI
Application Number:
JP13602681A
Publication Date:
November 16, 1989
Filing Date:
August 28, 1981
Export Citation:
Assignee:
UNITIKA LTD
International Classes:
C02F1/28; B01J20/26; B01J45/00
Next Patent: JPH0154095