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经营范围
发明名称
Protective arrangement
摘要
申请公布号
US1854031(A)
申请公布日期
1932.04.12
申请号
US19290374481
申请日期
1929.06.28
申请人
GENERAL ELECTRIC COMPANY
发明人
HEWLETT EDWARD M.
分类号
H01H85/46
主分类号
H01H85/46
代理机构
代理人
主权项
地址
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