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经营范围
发明名称
Venetian blind
摘要
申请公布号
US2083881(A)
申请公布日期
1937.06.15
申请号
US19350044403
申请日期
1935.10.10
申请人
NATIONAL LOCK CO.
发明人
WADE WILLIAM
分类号
E06B9/306
主分类号
E06B9/306
代理机构
代理人
主权项
地址
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