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经营范围
发明名称
Engine tachometer
摘要
申请公布号
US3056084(A)
申请公布日期
1962.09.25
申请号
US19580775271
申请日期
1958.11.20
申请人
PARMATER LEE W
发明人
PARMATER LEE W.
分类号
G01P3/48
主分类号
G01P3/48
代理机构
代理人
主权项
地址
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