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经营范围
发明名称
Antifriction bearing
摘要
申请公布号
US1796300(A)
申请公布日期
1931.03.17
申请号
US19280313197
申请日期
1928.10.18
申请人
W. H. MINER, INC.
发明人
O'CONNOR JOHN F.
分类号
B61F5/14
主分类号
B61F5/14
代理机构
代理人
主权项
地址
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