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公开(公告)号：US3366467A
公开(公告)日：1968-01-30
申请号：US34225964
申请日：1964-02-03
Applicant: AGENCY IND SCIENCE TECHN
Inventor： SHUNJI OHNISHI , HIROSHI TSUBOI
CPC classification number: C03C25/6246 , C03B37/15 , Y10S264/19
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