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发明名称
Selectable scale electrical instrument
摘要
申请公布号
US2509485(A)
申请公布日期
1950.05.30
申请号
US19460717120
申请日期
1946.12.19
申请人
HEYER INDUSTRIES INCORPORATED
发明人
DALZELL CLARENCE W.
分类号
H01M10/42
主分类号
H01M10/42
代理机构
代理人
主权项
地址
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