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发明名称
Storage-battery indicator
摘要
申请公布号
US1760937(A)
申请公布日期
1930.06.03
申请号
US19280301792
申请日期
1928.08.24
申请人
DIETRICH CARL W
发明人
DIETRICH CARL W.
分类号
G01F23/00;H01M10/48
主分类号
G01F23/00
代理机构
代理人
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地址
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