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公开(公告)号：US3443898A
公开(公告)日：1969-05-13
申请号：US3443898D
申请日：1966-07-05
Applicant: HALCON INTERNATIONAL INC
Inventor： SHERWIN MARTIN B , FOX SHERWOOD N , COLTON JOHN WHITE
IPC: C01B21/084 , C01B21/52 , C01B21/00
CPC classification number: C01B21/0846
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