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发明名称
Chain clasp
摘要
申请公布号
US2447422(A)
申请公布日期
1948.08.17
申请号
US19460711365
申请日期
1946.11.21
申请人
J. & L. TOOL & FINDINGS CO.
发明人
NELSON WILLIAM
分类号
A44C5/20;F16G15/04
主分类号
A44C5/20
代理机构
代理人
主权项
地址
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