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发明名称
Jewelry clasp
摘要
A jewelry clasp comprises a spring-loaded member normally closing a slot, the member being provided with a cam surface operable to move the member out of the slot when a jump ring is pushed into the slot against the cam surface.
申请公布号
US4310953(A)
申请公布日期
1982.01.19
申请号
US19790064854
申请日期
1979.08.08
申请人
NANASI, JOHN
发明人
NANASI, JOHN
分类号
A44C5/20;(IPC1-7):A44B19/00
主分类号
A44C5/20
代理机构
代理人
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地址
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