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发明名称
Building construction
摘要
申请公布号
US1749166(A)
申请公布日期
1930.03.04
申请号
US19260116053
申请日期
1926.06.14
申请人
SWAN FRANK S
发明人
SWAN FRANK S.
分类号
E04B1/20
主分类号
E04B1/20
代理机构
代理人
主权项
地址
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