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经营范围
发明名称
Electrical systems
摘要
申请公布号
US2713605(A)
申请公布日期
1955.07.19
申请号
US19520282957
申请日期
1952.04.18
申请人
PHILCO CORPORATION
发明人
BRADLEY WILLIAM E.
分类号
H04N9/24
主分类号
H04N9/24
代理机构
代理人
主权项
地址
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