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发明名称
Measuring and recording apparatus
摘要
申请公布号
US2306457(A)
申请公布日期
1942.12.29
申请号
US19400338440
申请日期
1940.06.01
申请人
OLIVE S. PETTY
发明人
MAYNE WILLIAM HARRY
分类号
G01R13/04;G01V1/24
主分类号
G01R13/04
代理机构
代理人
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