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经营范围
发明名称
Radio signaling
摘要
申请公布号
US1842937(A)
申请公布日期
1932.01.26
申请号
US19260090787
申请日期
1926.02.26
申请人
HARRY W. BOLENS
发明人
GIBLIN MARC A.
分类号
H01F21/02
主分类号
H01F21/02
代理机构
代理人
主权项
地址
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