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发明名称
RETRACTABLE SCREEN DOOR HOUSING HANDLE BALANCING SYSTEM
摘要
A horizontally extending screen door system having balancing cords that pull in a direction that opposes the force on a handle by the screen exerted by the wind up mechanism of the screen.
申请公布号
US2006283564(A1)
申请公布日期
2006.12.21
申请号
US20060424335
申请日期
2006.06.15
申请人
POPPEMA JOHN
发明人
POPPEMA JOHN
分类号
E06B9/24
主分类号
E06B9/24
代理机构
代理人
主权项
地址
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