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发明名称
Meter
摘要
申请公布号
US1817432(A)
申请公布日期
1931.08.04
申请号
US19270174806
申请日期
1927.03.12
申请人
ANGUS DONALD J
发明人
ANGUS DONALD J.
分类号
G01R13/06
主分类号
G01R13/06
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