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经营范围
发明名称
Testing apparatus
摘要
申请公布号
US2186727(A)
申请公布日期
1940.01.09
申请号
US19380218956
申请日期
1938.07.13
申请人
PRECISION SCIENTIFIC COMPANY
发明人
MARTIN FRANK S.;KELLEY MYRON T.
分类号
G01R17/16
主分类号
G01R17/16
代理机构
代理人
主权项
地址
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