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发明名称
Joist
摘要
申请公布号
US1790495(A)
申请公布日期
1931.01.27
申请号
US19260141702
申请日期
1926.10.15
申请人
BATES EXPANDED STEEL CORPORATION
发明人
BATES ALBERT J.;JR. ALBERT J. BATES,
分类号
E04C3/08
主分类号
E04C3/08
代理机构
代理人
主权项
地址
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