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发明名称
Resistance device
摘要
申请公布号
US2276230(A)
申请公布日期
1942.03.10
申请号
US19400355762
申请日期
1940.09.07
申请人
THE TIMKEN ROLLER BEARING COMPANY
发明人
EASTBURG CLIFFORD L.
分类号
B61F5/24
主分类号
B61F5/24
代理机构
代理人
主权项
地址
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