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发明名称
GERADHALTER FUER SCHALLPLATTEN.
摘要
申请公布号
DE1703736(U)
申请公布日期
1955.07.28
申请号
DE195500E7046U
申请日期
1955.04.26
申请人
ELECTROACUSTIC GESELLSCHAFT M.B.H.
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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