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发明名称
Concrete form
摘要
申请公布号
US1965686(A)
申请公布日期
1934.07.10
申请号
US19320638901
申请日期
1932.10.21
申请人
BRUCE LEO I
发明人
BRUCE LEO I.
分类号
E04G11/44
主分类号
E04G11/44
代理机构
代理人
主权项
地址
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