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发明名称
SIMPLE INJECTION WATER CUTTOFF METHOD FROM GROUND TO SEWER PIPE BURIED UNDER GROUND
摘要
申请公布号
JPS54149015(A)
申请公布日期
1979.11.21
申请号
JP19780056874
申请日期
1978.05.14
申请人
OKA MASATAKA
发明人
HAYASHI IKUO
分类号
E03F7/00;E03F9/00;F16L58/10
主分类号
E03F7/00
代理机构
代理人
主权项
地址
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