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发明名称
Building construction
摘要
申请公布号
US1761660(A)
申请公布日期
1930.06.03
申请号
US19280312849
申请日期
1928.10.16
申请人
CUMMINGS FRANK D
发明人
CUMMINGS FRANK D.
分类号
E04H9/02
主分类号
E04H9/02
代理机构
代理人
主权项
地址
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