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发明名称
Ring holder
摘要
申请公布号
US3093957(A)
申请公布日期
1963.06.18
申请号
US19600034740
申请日期
1960.06.08
申请人
WHITIN MACHINE WORKS
发明人
TETREAULT MERRITT D.
分类号
D01H7/60
主分类号
D01H7/60
代理机构
代理人
主权项
地址
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