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发明名称
LAUTSPRECHER MIT BEFESTIGUNGSFLANSCH
摘要
申请公布号
DE7109895(U)
申请公布日期
1971.06.16
申请号
DE19710009895U
申请日期
1971.03.16
申请人
ISOPHON WERKE GMBH
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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