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发明名称
Structural member for buildings
摘要
申请公布号
US2146540(A)
申请公布日期
1939.02.07
申请号
US19370124275
申请日期
1937.02.05
申请人
HAHN HARRY W;KEAS CHARLES E;BURKE EDMUND P
发明人
HAHN HARRY W.;KEAS CHARLES E.;BURKE EDMUND P.
分类号
E04C3/04;E04C3/09
主分类号
E04C3/04
代理机构
代理人
主权项
地址
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