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发明名称
Screw driver
摘要
申请公布号
US2188158(A)
申请公布日期
1940.01.23
申请号
US19370128830
申请日期
1937.03.03
申请人
ROCK GEORGE L
发明人
ROCK GEORGE L.
分类号
B25B15/06
主分类号
B25B15/06
代理机构
代理人
主权项
地址
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