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发明名称
Spring roller venetian blind
摘要
申请公布号
US1951659(A)
申请公布日期
1934.03.20
申请号
US19330695099
申请日期
1933.10.25
申请人
KESNER MICHAEL L
发明人
KESNER MICHAEL L.
分类号
E06B9/304
主分类号
E06B9/304
代理机构
代理人
主权项
地址
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