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发明名称
Preload adjustment for ball bearings
摘要
申请公布号
US2188251(A)
申请公布日期
1940.01.23
申请号
US19380237562
申请日期
1938.10.28
申请人
THE DUMORE COMPANY
发明人
NELSON JAMES HOLLY
分类号
B23Q1/26
主分类号
B23Q1/26
代理机构
代理人
主权项
地址
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