发明名称 Adjustable screen having magnetically latching louvers
摘要 An electromagnetically operated screen having a plurality of louvers which are provided with permanent magnets for maintaining the louvers latched shut when in a closed attitude without the consumption of energy.
申请公布号 US5357712(A) 申请公布日期 1994.10.25
申请号 US19930055184 申请日期 1993.04.30
申请人 STREETER, EDWARD C. 发明人 STREETER, EDWARD C.
分类号 E06B9/28;(IPC1-7):E06B7/08 主分类号 E06B9/28
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