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经营范围
发明名称
Radio signaling apparatus
摘要
申请公布号
US2031441(A)
申请公布日期
1936.02.18
申请号
US19290345498
申请日期
1929.03.08
申请人
GENERAL ELECTRIC COMPANY
发明人
WARNER JOHN C.
分类号
H03D1/16
主分类号
H03D1/16
代理机构
代理人
主权项
地址
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