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发明名称
Method of making bearings
摘要
申请公布号
US2158461(A)
申请公布日期
1939.05.16
申请号
US19360081432
申请日期
1936.05.23
申请人
GENERAL MOTORS CORPORATION
发明人
KOEHRING ROLAND P.;HILDABOLT JOHN M.
分类号
B22F7/04
主分类号
B22F7/04
代理机构
代理人
主权项
地址
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