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经营范围
发明名称
HERZSCHALLMIKROFON.
摘要
申请公布号
DE1731197(U)
申请公布日期
1956.10.04
申请号
DE195600SC616U
申请日期
1956.06.01
申请人
FRITZ SCHWARZER
发明人
FRITZ SCHWARZER
分类号
主分类号
代理机构
代理人
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