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发明名称
Verfahren und Vorrichtung zur Verhinderung der Aufzeichnung von Schaltgeräuschen bei Magnettongeräten
摘要
申请公布号
AT163387(B)
申请公布日期
1949.06.25
申请号
ATD163387
申请日期
1947.05.14
申请人
ING. ANDREAS HEMPFINGER
发明人
ING. ANDREAS HEMPFINGER
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