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经营范围
发明名称
Venetian blind
摘要
申请公布号
US2037393(A)
申请公布日期
1936.04.14
申请号
US19340721927
申请日期
1934.04.23
申请人
LEE R. ROBERTS;FRANK KEMPTNER
发明人
ROBERTS LEE R.
分类号
E06B9/308;E06B9/327;E06B9/384
主分类号
E06B9/308
代理机构
代理人
主权项
地址
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