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发明名称
Rücksteller für den Tonabnehmer an Grammophonen, insbesondere für den Sprachunterricht
摘要
申请公布号
CH428248(A)
申请公布日期
1967.01.15
申请号
CH19650010190
申请日期
1965.07.19
申请人
RITTER,EDUARD
发明人
POESSL,HANS
分类号
G09B5/04
主分类号
G09B5/04
代理机构
代理人
主权项
地址
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