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发明名称
Coupling for pile sections
摘要
申请公布号
US2708828(A)
申请公布日期
1955.05.24
申请号
US19530337713
申请日期
1953.02.19
申请人
PRUYN FRANCIS L
发明人
PRUYN FRANCIS L.
分类号
E02D5/52
主分类号
E02D5/52
代理机构
代理人
主权项
地址
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