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发明名称
Tubular metal railing structure
摘要
申请公布号
US2172137(A)
申请公布日期
1939.09.05
申请号
US19370137258
申请日期
1937.04.16
申请人
VULCAN RAIL AND CONSTRUCTION COMPANY
发明人
EWING WYLIE B.
分类号
E04F11/18
主分类号
E04F11/18
代理机构
代理人
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地址
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