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公开(公告)号：US3352552A
公开(公告)日：1967-11-14
申请号：US47054765
申请日：1965-07-08
Applicant: HARBISON WALKER REFRACTORIES
Inventor： WALTER KOENING EDWARD , COPE GERALD R
CPC classification number: C21C5/4613 , C04B28/342 , C04B14/046 , C04B14/303
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