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经营范围
发明名称
Twelve-course, aural type, triple modulation directive radiobeacon
摘要
申请公布号
US1961206(A)
申请公布日期
1934.06.05
申请号
US19320640154
申请日期
1932.10.29
申请人
HARRY DIAMOND
发明人
DIAMOND HARRY
分类号
G01S1/02;G01S19/02;G01S19/23;G01S19/36
主分类号
G01S1/02
代理机构
代理人
主权项
地址
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