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发明名称
Supporting device
摘要
申请公布号
US2551388(A)
申请公布日期
1951.05.01
申请号
US19480003451
申请日期
1948.01.21
申请人
NYGARD MAE E
发明人
NYGARD MAE E.
分类号
A47C20/00;A47C20/02
主分类号
A47C20/00
代理机构
代理人
主权项
地址
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在一多孔结构内利用个别引动板条之百叶窗包络组合
