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发明名称
LAUTSPRECHERBOX (LAUTSPRECHERGEHAEUSE)
摘要
申请公布号
DE6917307(U)
申请公布日期
1969.09.18
申请号
DE19690017307U
申请日期
1969.04.29
申请人
REINHOLD LUDWIG HILGERING
发明人
REINHOLD LUDWIG HILGERING
分类号
主分类号
代理机构
代理人
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