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经营范围
发明名称
Concrete screed legs
摘要
申请公布号
US2551826(A)
申请公布日期
1951.05.08
申请号
US19480026367
申请日期
1948.05.11
申请人
COX SR PAUL W
发明人
SR. PAUL W. COX,
分类号
E04F21/05
主分类号
E04F21/05
代理机构
代理人
主权项
地址
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