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发明名称
Ohreinsatz fuer Schwerhoerigengeraete
摘要
申请公布号
DE1091284(B)
申请公布日期
1960.10.20
申请号
DE1958A030426
申请日期
1958.09.30
申请人
A/S DANAVOX
发明人
分类号
A61F11/00
主分类号
A61F11/00
代理机构
代理人
主权项
地址
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