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发明名称
VARIABLE RESISTANCE DEVICE
摘要
申请公布号
JPH0249405(A)
申请公布日期
1990.02.19
申请号
JP19880200728
申请日期
1988.08.11
申请人
CHICHIBU CEMENT CO LTD
发明人
WATANABE ISAO
分类号
H01C10/14
主分类号
H01C10/14
代理机构
代理人
主权项
地址
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