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Document Type and Number:
Japanese Patent JPS6232969
Kind Code:
B2
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Inventors:
YAMASHITA HISAO
OZAWA YOSHIHIRO
MAEKOYA CHIAKI
FUJITA KAZUNORI
TAKEUCHI SEIJI
NAKAJIMA FUMITO
Application Number:
JP854684A
Publication Date:
July 17, 1987
Filing Date:
January 23, 1984
Export Citation:
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Assignee:
HITACHI LTD
International Classes:
C01G43/00; B01J20/06; B01J20/32; B01J20/34; C22B60/02



 
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