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发明名称
Composite beam
摘要
A composite beam including an elongated metal shell and a pierceable insert contained within at least one end of the elongated metal shell.
申请公布号
US5625997(A)
申请公布日期
1997.05.06
申请号
US19950415945
申请日期
1995.04.03
申请人
CALLAHAN, ROBERT M.;SHIFLETT, RONALD B.
发明人
CALLAHAN, ROBERT M.;SHIFLETT, RONALD B.
分类号
E04B2/74;E04B2/76;E04C3/292;(IPC1-7):E04C3/292
主分类号
E04B2/74
代理机构
代理人
主权项
地址
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