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发明名称
Steel fence post
摘要
申请公布号
US2222249(A)
申请公布日期
1940.11.19
申请号
US19390302048
申请日期
1939.10.30
申请人
BORGEN OSCAR M
发明人
BORGEN OSCAR M.
分类号
E04H17/12
主分类号
E04H17/12
代理机构
代理人
主权项
地址
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