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发明名称
VORRICHTUNG ZUR ABTASTUNG VON SCHALLPLATTEN.
摘要
申请公布号
DE1743397(U)
申请公布日期
1957.04.18
申请号
DE195600E8183U
申请日期
1956.03.10
申请人
ELECTROACUSTIC G.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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