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发明名称
Adjustable spring clamp for earrings
摘要
申请公布号
US3020734(A)
申请公布日期
1962.02.13
申请号
US19600024433
申请日期
1960.04.25
申请人
WITHERS HAROLD E
发明人
WITHERS HAROLD E.
分类号
A44C7/00
主分类号
A44C7/00
代理机构
代理人
主权项
地址
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