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经营范围
发明名称
Spire de couplage
摘要
申请公布号
FR947517(A)
申请公布日期
1949.07.05
申请号
FRD947517
申请日期
1947.06.04
申请人
WESTINGHOUSE ELECTRIC CORPORATION
发明人
分类号
H01J25/12
主分类号
H01J25/12
代理机构
代理人
主权项
地址
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