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经营范围
发明名称
Controlled-flexing splice bar
摘要
申请公布号
US2212979(A)
申请公布日期
1940.08.27
申请号
US19380239393
申请日期
1938.11.07
申请人
POOR & COMPANY
发明人
DISBROW CLARKSON A.
分类号
E01B11/04
主分类号
E01B11/04
代理机构
代理人
主权项
地址
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