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发明名称
Improvements in lock nuts and their manufacture
摘要
申请公布号
GB640938(A)
申请公布日期
1950.08.02
申请号
GB19470020605
申请日期
1947.07.30
申请人
STOVER LOCK NUT & MACHINERY CORPORATION
发明人
分类号
B21K1/70;F16B39/284
主分类号
B21K1/70
代理机构
代理人
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地址
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