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经营范围
发明名称
VARIABLE RESISTANCE CIRCUIT
摘要
申请公布号
GB1514136(A)
申请公布日期
1978.06.14
申请号
GB19760010657
申请日期
1976.03.17
申请人
YOKOGAWA ELECTRIC WORKS LTD
发明人
分类号
H03G1/00;H03G3/00;H03H11/40;(IPC1-7):H03H5/00
主分类号
H03G1/00
代理机构
代理人
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