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发明名称
Screw holder and driver
摘要
申请公布号
US1755588(A)
申请公布日期
1930.04.22
申请号
US19280280569
申请日期
1928.05.25
申请人
BRONK CHARLES W
发明人
BRONK CHARLES W.
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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