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发明名称
Electric meter
摘要
申请公布号
US1820212(A)
申请公布日期
1931.08.25
申请号
US19290405488
申请日期
1929.11.07
申请人
SHERMAN BAUER PAUL
发明人
BAUER PAUL SHERMAN
分类号
G01R19/18;H03F3/40
主分类号
G01R19/18
代理机构
代理人
主权项
地址
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