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发明名称
VORRICHTUNG ZUR UMSCHALTUNG DER TONTRAEGERGESCHWINDIGKEIT BEI MAGNETTONGERAETEN.
摘要
申请公布号
DE1758385(U)
申请公布日期
1957.12.19
申请号
DE195700L8638U
申请日期
1957.06.12
申请人
LOEWE OPTA AKTIENGESELLSCHAFT
发明人
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主分类号
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