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经营范围
发明名称
Improvements in and relating to a mast structure
摘要
申请公布号
GB656878(A)
申请公布日期
1951.09.05
申请号
GB19470027134
申请日期
1947.10.09
申请人
LEE C. MOORE CORPORATION
发明人
分类号
E04H12/18;E21B15/00
主分类号
E04H12/18
代理机构
代理人
主权项
地址
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