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发明名称
Building construction
摘要
申请公布号
US1981166(A)
申请公布日期
1934.11.20
申请号
US19320603657
申请日期
1932.04.06
申请人
DUTTWEILER JOHN J
发明人
DUTTWEILER JOHN J.
分类号
E04H5/08
主分类号
E04H5/08
代理机构
代理人
主权项
地址
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