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发明名称
LAUTSPRECHERANORDNUNG.
摘要
申请公布号
DE1821347(U)
申请公布日期
1960.11.10
申请号
DE195800F4988U
申请日期
1958.05.23
申请人
ARNOLD FREY
发明人
ARNOLD FREY
分类号
主分类号
代理机构
代理人
主权项
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