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发明名称
Roller bearing
摘要
申请公布号
US2285800(A)
申请公布日期
1942.06.09
申请号
US19400355629
申请日期
1940.09.06
申请人
ELLISON BEST FRANK
发明人
BEST FRANK ELLISON
分类号
F16C19/38
主分类号
F16C19/38
代理机构
代理人
主权项
地址
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