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发明名称
ELEKTRISCHES FILTER.
摘要
申请公布号
DE1787619(U)
申请公布日期
1959.04.30
申请号
DE1957D015791U
申请日期
1957.04.27
申请人
DORTMUNDER BRUECKENBAU C. H. JUCHO
发明人
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主分类号
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代理人
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