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发明名称
MAGNETISCHES FILTER MIT EINEM AUSSER BETRIEB SETZBAREN PERMANENTMAGNETEN.
摘要
申请公布号
DE1712433(U)
申请公布日期
1955.12.08
申请号
DE195400N4994U
申请日期
1954.12.29
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
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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