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经营范围
发明名称
Hydraulic props
摘要
申请公布号
US3046947(A)
申请公布日期
1962.07.31
申请号
US19600050795
申请日期
1960.08.19
申请人
ACROW (ENGINEERS) LIMITED
发明人
REYNOLDS REGINALD;STAMMERS PETER HAIG
分类号
E21D15/51
主分类号
E21D15/51
代理机构
代理人
主权项
地址
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