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发明名称
WATERSTOP APPARATUS
摘要
申请公布号
GB1570396(A)
申请公布日期
1980.07.02
申请号
GB19760003092
申请日期
1976.11.25
申请人
GRACE LTD W R
发明人
分类号
E04B1/68;E04B1/684;(IPC1-7):E01C11/10
主分类号
E04B1/68
代理机构
代理人
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