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发明名称
PROCESSO PARA A DETECCAO DE DIFERENCA DE FASE ENTRE DOIS SINAIS ELETRICOS E APARELHO PARA SUA EXECUCAO
摘要
申请公布号
BR7706148(A)
申请公布日期
1978.07.04
申请号
BR19770006148
申请日期
1977.09.14
申请人
ERICSSON TELEFONAB L M
发明人
FORSBERG G
分类号
H03D13/00;(IPC1-7):H03D13/00
主分类号
H03D13/00
代理机构
代理人
主权项
地址
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