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发明名称
WANDLEUCHTE MIT EINGEBAUTEM RADIOLAUTSPRECHER.
摘要
申请公布号
DE1678305(U)
申请公布日期
1954.06.16
申请号
DE195300B5968U
申请日期
1953.12.22
申请人
ERHARD BECKER
发明人
ERHARD BECKER
分类号
主分类号
代理机构
代理人
主权项
地址
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