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经营范围
发明名称
Venetian blind supporting means
摘要
申请公布号
US2493234(A)
申请公布日期
1950.01.03
申请号
US19460641528
申请日期
1946.01.16
申请人
DUNN JOHN W
发明人
DUNN JOHN W.
分类号
E06B9/305
主分类号
E06B9/305
代理机构
代理人
主权项
地址
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