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经营范围
发明名称
Submarine pipe line trencher and method
摘要
申请公布号
US3004392(A)
申请公布日期
1961.10.17
申请号
US19590805063
申请日期
1959.04.08
申请人
TELLEPSEN CONSTRUCTION CO.
发明人
SYMMANK WILLIAM D.
分类号
E02F3/92;E02F5/10
主分类号
E02F3/92
代理机构
代理人
主权项
地址
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