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发明名称
Radio station indicator
摘要
申请公布号
US1774146(A)
申请公布日期
1930.08.26
申请号
US19270233115
申请日期
1927.11.14
申请人
ARNOLD LESTI
发明人
LESTI ARNOLD
分类号
H03J7/32
主分类号
H03J7/32
代理机构
代理人
主权项
地址
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