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发明名称
Electronic ratio meter
摘要
申请公布号
US2852743(A)
申请公布日期
1958.09.16
申请号
US19540445313
申请日期
1954.07.23
申请人
HEWLETT-PACKARD COMPANY
发明人
PAPPAS NICHOLAS L.
分类号
G01R19/10;G06G7/16
主分类号
G01R19/10
代理机构
代理人
主权项
地址
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