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发明名称
ARC EXTINGUISHING DEVICE FOR ELECTRIC SWITCHES
摘要
申请公布号
CA884573(A)
申请公布日期
1971.10.26
申请号
CAD884573
申请日期
申请人
TOSHIO WATANABE
发明人
TOSHIO WATANABE
分类号
主分类号
代理机构
代理人
主权项
地址
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