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发明名称
Retractable pintle rig for laying sheet metal flooring
摘要
申请公布号
US2572873(A)
申请公布日期
1951.10.30
申请号
US19480068695
申请日期
1948.12.31
申请人
INTERNATIONAL STEEL COMPANY
发明人
LUKE LEO C.
分类号
E04F15/06
主分类号
E04F15/06
代理机构
代理人
主权项
地址
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