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经营范围
发明名称
Curtain operating apparatus
摘要
申请公布号
US2012460(A)
申请公布日期
1935.08.27
申请号
US19330693917
申请日期
1933.10.17
申请人
VALLEN EARL J
发明人
VALLEN EARL J.
分类号
A47H5/032
主分类号
A47H5/032
代理机构
代理人
主权项
地址
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