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发明名称
Screw driver
摘要
申请公布号
US1862470(A)
申请公布日期
1932.06.07
申请号
US19310547108
申请日期
1931.06.26
申请人
GUS EDSTROM
发明人
EDSTROM GUS
分类号
B25B15/04;B25B17/00
主分类号
B25B15/04
代理机构
代理人
主权项
地址
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