发明名称 Key extension for the physically impaired
摘要 A key extension for the physically impaired is provided and consists of a shank portion with an enlarged handle portion affixed to one end and a head portion affixed to a second end of the shank portion. The head portion retains a bow of a standard key therein so that a blade of the standard key can be inserted within a lock allowing the physically impaired to turn the key extension to operate the lock.
申请公布号 US4991417(A) 申请公布日期 1991.02.12
申请号 US19900496369 申请日期 1990.03.20
申请人 GRECCO, PASQUALE 发明人 GRECCO, PASQUALE
分类号 E05B19/00 主分类号 E05B19/00
代理机构 代理人
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