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发明名称
Improvements in and relating to nuts for bolts and the like
摘要
申请公布号
GB541969(A)
申请公布日期
1941.12.19
申请号
GB19400010217
申请日期
1941.04.23
申请人
JOHN WINNINGTON BRISTOW
发明人
分类号
F16B39/26
主分类号
F16B39/26
代理机构
代理人
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