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发明名称
VORRICHTUNG ZUR HERSTELLUNG VON KANAELEN, AUSSPARUNGEN U. DGL. IN BETON.
摘要
申请公布号
DE1843363(U)
申请公布日期
1961.12.14
申请号
DE196000K5702U
申请日期
1960.06.27
申请人
KARL KOEHLER
发明人
KARL KOEHLER
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主分类号
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代理人
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