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发明名称
ELEKTRO-DYNAMISCHER LAUTSPRECHER.
摘要
申请公布号
DE1617408(U)
申请公布日期
1950.12.14
申请号
DE194900L0149U
申请日期
1949.10.31
申请人
C. LORENZ A.-G.
发明人
分类号
主分类号
代理机构
代理人
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