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发明名称
Means for assembling construction units
摘要
申请公布号
US2389171(A)
申请公布日期
1945.11.20
申请号
US19420461706
申请日期
1942.10.12
申请人
URBAIN LEON F
发明人
URBAIN LEON F.
分类号
E04B9/30
主分类号
E04B9/30
代理机构
代理人
主权项
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