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发明名称
Safety chain
摘要
The fundamentally novel feature of my invention is that the first chain link is retained by a bolt, the end of a cylinder mortise lock. By unlocking and withdrawing the lock, the chain falls downwards and the door can be opened.
申请公布号
DE3715747(A1)
申请公布日期
1988.12.08
申请号
DE19873715747
申请日期
1987.05.12
申请人
SCHLIMME,CHRISTIAN A.
发明人
A. SCHLIMME,CHRISTIAN
分类号
E05C17/36;(IPC1-7):E05C17/36;E05B17/20
主分类号
E05C17/36
代理机构
代理人
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地址
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