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经营范围
发明名称
Peak recording instrument
摘要
申请公布号
US3071973(A)
申请公布日期
1963.01.08
申请号
US19590838687
申请日期
1959.09.08
申请人
BERNARD HELFAND
发明人
HELFAND BERNARD
分类号
G01P15/06
主分类号
G01P15/06
代理机构
代理人
主权项
地址
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