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发明名称
Coupled range finder
摘要
申请公布号
US2190559(A)
申请公布日期
1940.02.13
申请号
US19380246896
申请日期
1938.12.20
申请人
FRED DRENKE
发明人
DRENKE FRED
分类号
G03B13/20
主分类号
G03B13/20
代理机构
代理人
主权项
地址
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