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发明名称
ELECTRONIC VARIABLE RESISTOR
摘要
申请公布号
JPH02174410(A)
申请公布日期
1990.07.05
申请号
JP19880331169
申请日期
1988.12.27
申请人
RICOH CO LTD
发明人
OKABAYASHI KOJI
分类号
H03G3/20
主分类号
H03G3/20
代理机构
代理人
主权项
地址
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