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公开(公告)号：US3420050A
公开(公告)日：1969-01-07
申请号：US3420050D
申请日：1965-08-18
Applicant: ICI LTD
Inventor： PARSEY MICHAEL RICHARD , THOMPSON EDWARD , WALKER ERIC
CPC classification number: D07B1/142 , D06B1/00 , D06C2700/135 , D06M7/00 , D06M2200/40 , D07B2205/201 , D07B2801/10
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