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发明名称
Retractable knife
摘要
An improved retractable knife comprises two coalescent casings which has a sliding seat and a driving button inside. Two casings are combined firmly so that the sliding seat can move inside the casings firmly.
申请公布号
US5099578(A)
申请公布日期
1992.03.31
申请号
US19910696785
申请日期
1991.05.07
申请人
JAN, RONG S.
发明人
JAN, RONG S.
分类号
B26B5/00
主分类号
B26B5/00
代理机构
代理人
主权项
地址
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