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发明名称
Combination steel joist and decking for floor construction
摘要
申请公布号
US1863257(A)
申请公布日期
1932.06.14
申请号
US19290350600
申请日期
1929.03.28
申请人
TASHJIAN ARMEN H
发明人
TASHJIAN ARMEN H.
分类号
E04B5/29
主分类号
E04B5/29
代理机构
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