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经营范围
发明名称
Utility wire mast
摘要
申请公布号
US2977402(A)
申请公布日期
1961.03.28
申请号
US19540459678
申请日期
1954.10.01
申请人
UTILITY SERVICE CO., INC.
发明人
PARKISON EVERETT R.
分类号
E04H12/18
主分类号
E04H12/18
代理机构
代理人
主权项
地址
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