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公开(公告)号：US3423330A
公开(公告)日：1969-01-21
申请号：US3423330D
申请日：1965-03-22
Applicant: FMC CORP
Inventor： START JOHN FRANCIS , SEGLIN LEONARD , FRANKO-FILIPASIC BORIVOJ RICHA
IPC: C01B13/02
CPC classification number: C01B13/0214
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