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发明名称
Improvements in screw-and-nut driving mechanism
摘要
申请公布号
GB392060(A)
申请公布日期
1933.05.11
申请号
GB19320027136
申请日期
1932.09.30
申请人
WILLIAM HEYDEN
发明人
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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