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经营范围
发明名称
Lattice beam
摘要
申请公布号
US1813373(A)
申请公布日期
1931.07.07
申请号
US19290334248
申请日期
1929.01.22
申请人
CHARLES L. WOOLDRIDGE, INC.
发明人
WOOLDRIDGE CHARLES L.
分类号
E04C3/04;E04C3/08
主分类号
E04C3/04
代理机构
代理人
主权项
地址
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