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发明名称
Method and apparatus for making bearing-retaining lock nuts
摘要
申请公布号
US2355856(A)
申请公布日期
1944.08.15
申请号
US19430474674
申请日期
1943.02.04
申请人
GREEN LEE B
发明人
GREEN LEE B.
分类号
B21K1/70
主分类号
B21K1/70
代理机构
代理人
主权项
地址
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