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发明名称
Nut opener
摘要
申请公布号
US2653638(A)
申请公布日期
1953.09.29
申请号
US19510210693
申请日期
1951.02.13
申请人
NELSON ALFRED N
发明人
NELSON ALFRED N.
分类号
A47J43/26
主分类号
A47J43/26
代理机构
代理人
主权项
地址
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