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发明名称
Lock nut
摘要
申请公布号
US2222460(A)
申请公布日期
1940.11.19
申请号
US19380216972
申请日期
1938.07.01
申请人
THE DILL MANUFACTURING COMPANY
发明人
CROWLEY JOHN C.
分类号
B21K1/70;F16B39/38
主分类号
B21K1/70
代理机构
代理人
主权项
地址
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