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发明名称
Télévision
摘要
申请公布号
FR938793(A)
申请公布日期
1948.10.25
申请号
FRD938793
申请日期
1946.11.16
申请人
COLUMBIA BROADCASTING SYSTEM, INC.
发明人
分类号
H04N9/07
主分类号
H04N9/07
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代理人
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