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发明名称
METHOD AND DEVICE FOR WATER STOPPING IN EXISTING PIPELINE
摘要
申请公布号
JPH0390758(A)
申请公布日期
1991.04.16
申请号
JP19890227987
申请日期
1989.09.01
申请人
TSUJIMOTO HARUYOSHI;KINOSHITA TORU
发明人
TSUJIMOTO HARUYOSHI
分类号
E03F7/00
主分类号
E03F7/00
代理机构
代理人
主权项
地址
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