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发明名称
Comparator
摘要
申请公布号
US2336695(A)
申请公布日期
1943.12.14
申请号
US19420463137
申请日期
1942.10.23
申请人
JEAN MAURER
发明人
MAURER JEAN
分类号
G01B3/22
主分类号
G01B3/22
代理机构
代理人
主权项
地址
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