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公开(公告)号：US3397744A
公开(公告)日：1968-08-20
申请号：US50545265
申请日：1965-10-28
Applicant: GAF CORP
Inventor： HORT EUGENE V , BERGMAN CARL A
IPC: C09K8/68
CPC classification number: C09K8/685
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