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发明名称
Screw starter
摘要
申请公布号
US2150184(A)
申请公布日期
1939.03.14
申请号
US19360073122
申请日期
1936.04.07
申请人
PEARSON GEORGE F
发明人
PEARSON GEORGE F.
分类号
B25B23/10
主分类号
B25B23/10
代理机构
代理人
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