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经营范围
发明名称
Keyed shaft structure
摘要
申请公布号
US2197631(A)
申请公布日期
1940.04.16
申请号
US19380199465
申请日期
1938.04.01
申请人
GENERAL ELECTRIC COMPANY
发明人
DORAN JOHN H.
分类号
F16B3/00;F16D1/08
主分类号
F16B3/00
代理机构
代理人
主权项
地址
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