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经营范围
发明名称
METHOD FOR LAYING AN UNDERGROUND PIPELINE
摘要
申请公布号
US3630038(A)
申请公布日期
1971.12.28
申请号
USD3630038
申请日期
1970.09.28
申请人
CHISSO CORP.
发明人
MASAO ANDO
分类号
E02B9/06;E02F5/10;F16L1/028;F16L1/038;(IPC1-7):F16L1/00;F24H1/14;F16L53/00
主分类号
E02B9/06
代理机构
代理人
主权项
地址
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