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经营范围
发明名称
Verfahren und Vorrichtung zur UEberwachung (Feststellung der Programmwahl) von Empfangsgeraeten (Rundfunk- oder Fernsehempfaengern)
摘要
申请公布号
DE1159524(B)
申请公布日期
1963.12.19
申请号
DE1959N016910
申请日期
1959.06.29
申请人
A.C. NIELSEN COMPANY
发明人
FREEMAN ROBERT L.;CURREY CHARLES H.
分类号
H04H60/44
主分类号
H04H60/44
代理机构
代理人
主权项
地址
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