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发明名称
PIPE PROPELLING APPARATUS
摘要
申请公布号
AU594917(B2)
申请公布日期
1990.03.15
申请号
AU19880021984
申请日期
1988.09.07
申请人
KABUSHIKI KAISHA ISEKI KAIHATSU KOKI
发明人
TOSHIO AKESAKA
分类号
E21D9/06;E21B7/20;F16L1/06;(IPC1-7):F16L1/02
主分类号
E21D9/06
代理机构
代理人
主权项
地址
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