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经营范围
发明名称
Wireless transmission system
摘要
申请公布号
US1823794(A)
申请公布日期
1931.09.15
申请号
US19270228528
申请日期
1927.10.25
申请人
ABRAHAM ESAU
发明人
ESAU ABRAHAM
分类号
H04B7/10
主分类号
H04B7/10
代理机构
代理人
主权项
地址
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