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发明名称
LAUTSPRECHER.
摘要
申请公布号
DE1649509(U)
申请公布日期
1953.01.22
申请号
DE195100E1343U
申请日期
1951.01.30
申请人
DIPL.-ING. HANS ECKMILLER
发明人
DIPL.-ING. HANS ECKMILLER
分类号
主分类号
代理机构
代理人
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