发明名称 |
Magnetic safety chain holder |
摘要 |
A magnetic chain and bolt holder for a chain door guard, to prevent swinging thereof into damaging interference between the door and door casing, and comprised of a magnet plate positioned on the door casing at the terminal end of the chain when hanging by gravity for automatic securement thereof.
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申请公布号 |
US4749218(A) |
申请公布日期 |
1988.06.07 |
申请号 |
US19870061466 |
申请日期 |
1987.06.15 |
申请人 |
JORDAN, RICHARD L.;LAZAR, DORIS M. |
发明人 |
JORDAN, RICHARD L.;LAZAR, DORIS M. |
分类号 |
E05C17/36;(IPC1-7):E05C17/36 |
主分类号 |
E05C17/36 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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