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公开(公告)号：US3536616A
公开(公告)日：1970-10-27
申请号：US3536616D
申请日：1968-06-20
Applicant: AGENCY IND SCIENCE TECHN
Inventor： KONDOH GORO , HONDA SIGERU , MURAKAMI YUKIO
CPC classification number: C02F1/681 , Y10S210/924
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