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发明名称
Building construction
摘要
申请公布号
US2300937(A)
申请公布日期
1942.11.03
申请号
US19400368280
申请日期
1940.12.03
申请人
H. B. WELCH;A. J. WEBERG
发明人
LAHTI ANARD A.
分类号
E04B2/56
主分类号
E04B2/56
代理机构
代理人
主权项
地址
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