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经营范围
发明名称
High voltage circuit breaker
摘要
申请公布号
US2239829(A)
申请公布日期
1941.04.29
申请号
US19380183077
申请日期
1938.01.03
申请人
PITTMAN RALPH R;WALSH CARROLL H
发明人
PITTMAN RALPH R.;WALSH CARROLL H.
分类号
H01H73/34
主分类号
H01H73/34
代理机构
代理人
主权项
地址
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