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发明名称
Improvements relating to beams or stanchions for the construction of buildings
摘要
申请公布号
GB573446(A)
申请公布日期
1945.11.21
申请号
GB19430020717
申请日期
1943.12.10
申请人
WILLIAM HENRY HOWARD ABRAM
发明人
分类号
E04B2/58
主分类号
E04B2/58
代理机构
代理人
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