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发明名称
NIEDERFREQUENZ-VERSTAERKER, VORZUGSWEISE FUER SCHWERHOERIGENGERAETE.
摘要
申请公布号
DE1767065(U)
申请公布日期
1958.05.22
申请号
DE195400B7765U
申请日期
1954.05.12
申请人
DEUTSCHE ELEKTRONIK GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG
发明人
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