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经营范围
发明名称
Method of forming bearings
摘要
申请公布号
US2145460(A)
申请公布日期
1939.01.31
申请号
US19360113210
申请日期
1936.11.28
申请人
UNITED AIRCRAFT CORPORATION
发明人
RYDER EARLE A.
分类号
B21K1/04
主分类号
B21K1/04
代理机构
代理人
主权项
地址
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