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经营范围
发明名称
ECHOLOTGERAET.
摘要
申请公布号
DE1726225(U)
申请公布日期
1956.07.12
申请号
DE195600E8373U
申请日期
1956.05.02
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
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