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经营范围
发明名称
COUVRE-JOINTS EXTERIEURS NOUVEAUX UTILISES NOTAMMENT POUR RENDRE ETANCHES DES JOINTS ENTRE DEUX MASSES DE BETON
摘要
申请公布号
BE744690(A1)
申请公布日期
1970.07.01
申请号
BED744690
申请日期
1970.01.20
申请人
W.R. GRACE + CY., 7 HANOVER SQUARE, NEW YORK 5, N.Y., E.U.A,
发明人
HURST J
分类号
E04B1/68;E04B1/684;(IPC1-7):E04B/
主分类号
E04B1/68
代理机构
代理人
主权项
地址
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