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发明名称
Power screw driver
摘要
申请公布号
US2314760(A)
申请公布日期
1943.03.23
申请号
US19410392422
申请日期
1941.05.08
申请人
PHILLIPS SCREW COMPANY
发明人
BLAIR WALTER
分类号
B25B23/04
主分类号
B25B23/04
代理机构
代理人
主权项
地址
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