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发明名称
GEGENGEKOPPELTER GLEICHSTROMVERSTAERKER, INSBESONDERE FUER DIE PH-MESSUNG.
摘要
申请公布号
DE1683686(U)
申请公布日期
1954.09.23
申请号
DE195400K6339U
申请日期
1954.07.07
申请人
DIPL.-ING. ULRICH KNICK
发明人
DIPL.-ING. ULRICH KNICK
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主分类号
代理机构
代理人
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地址
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