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发明名称
Measuring apparatus
摘要
申请公布号
US1819313(A)
申请公布日期
1931.08.18
申请号
US19290395694
申请日期
1929.09.27
申请人
YOUNG ARCHER E
发明人
YOUNG ARCHER E.
分类号
G06G3/08
主分类号
G06G3/08
代理机构
代理人
主权项
地址
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