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发明名称
System of making observations and directing gun fire
摘要
申请公布号
US1990494(A)
申请公布日期
1935.02.12
申请号
US19340740802
申请日期
1934.08.21
申请人
MURPHY WILLIAM H
发明人
MURPHY WILLIAM H.
分类号
G01S1/02;G01S19/21;G01S19/26
主分类号
G01S1/02
代理机构
代理人
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地址
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