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经营范围
发明名称
Protective apparatus for electrical systems
摘要
申请公布号
US1908835(A)
申请公布日期
1933.05.16
申请号
US19300474250
申请日期
1930.08.09
申请人
EVANS EARL R
发明人
EVANS EARL R.
分类号
H02H9/08
主分类号
H02H9/08
代理机构
代理人
主权项
地址
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