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经营范围
发明名称
Power operated automatic screw driver
摘要
申请公布号
US2840126(A)
申请公布日期
1958.06.24
申请号
US19550550802
申请日期
1955.12.02
申请人
HELMUT SCHMITT
发明人
SCHMITT HELMUT
分类号
B25B23/10
主分类号
B25B23/10
代理机构
代理人
主权项
地址
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