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经营范围
发明名称
Improvements in joists, beams, girders and the like
摘要
申请公布号
GB577547(A)
申请公布日期
1946.05.22
申请号
GB19430021619
申请日期
1943.12.24
申请人
STANLEY GEORGE POLDEN;LESLIE FRANCIS AYLAND
发明人
分类号
E04C3/04;E04C3/07
主分类号
E04C3/04
代理机构
代理人
主权项
地址
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