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发明名称
Perfectionnements aux dispositifs de télévision
摘要
申请公布号
FR807231(A)
申请公布日期
1937.01.07
申请号
FRD807231
申请日期
1936.06.08
申请人
ELECTRIC & MUSICAL INDUSTRIES LIMITED
发明人
分类号
H04M5/10;H04N5/217;H04N5/228
主分类号
H04M5/10
代理机构
代理人
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地址
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