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发明名称
ANTI-FRICTION BEARING
摘要
申请公布号
CA301711(A)
申请公布日期
1930.07.01
申请号
CAD301711
申请日期
申请人
W. H. MINER
发明人
JOHN F. O'CONNOR
分类号
主分类号
代理机构
代理人
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