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经营范围
发明名称
PIPE DRIVING METHOD ALLOWING BLIND PUSH
摘要
申请公布号
JPS52123511(A)
申请公布日期
1977.10.17
申请号
JP19760039911
申请日期
1976.04.08
申请人
SAWAMURA TAKESUKE
发明人
SAWAMURA TAKESUKE
分类号
E21D9/093;F16L1/00
主分类号
E21D9/093
代理机构
代理人
主权项
地址
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