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发明名称
Improvements in or relating to spanners
摘要
申请公布号
GB569952(A)
申请公布日期
1945.06.15
申请号
GB19430014279
申请日期
1943.09.01
申请人
BRITISH ERMETO CORPORATION LIMITED;ROBERT JAMES WILKERSON
发明人
分类号
B23Q13/00;B25B13/08;B25B23/00
主分类号
B23Q13/00
代理机构
代理人
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