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发明名称
Improvements in or relating to spanners
摘要
申请公布号
GB776385(A)
申请公布日期
1957.06.05
申请号
GB19550001470
申请日期
1955.01.18
申请人
SVEN IVAR NATANAEL HALL
发明人
分类号
B25B13/10
主分类号
B25B13/10
代理机构
代理人
主权项
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