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经营范围
发明名称
Gepolariseerde wisselstroomschel.
摘要
申请公布号
NL86426(C)
申请公布日期
1957.10.15
申请号
NL19520167594
申请日期
1952.02.21
申请人
BELL TELEPHONE MANUFACTURING COMPANY SA
发明人
分类号
G10K1/062;G10K1/063;G10K1/064;H01L39/24
主分类号
G10K1/062
代理机构
代理人
主权项
地址
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