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发明名称
WATTHOUR METER REGISTER CLEANING PROCESS
摘要
申请公布号
CA374489(A)
申请公布日期
1938.06.14
申请号
CAD374489
申请日期
申请人
ANDREW LOUIS TSCHETTER
发明人
ANDREW LOUIS TSCHETTER
分类号
主分类号
代理机构
代理人
主权项
地址
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