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发明名称
VERSCHLUSS FUER NACHTRAEGLICH VORGESEHENE REINIGUNGSOEFFNUNGEN VON ROHREN, INSBESONDERE VON ABFLUSSLEITUNGEN.
摘要
申请公布号
DE1606648(U)
申请公布日期
1950.05.17
申请号
DE194900L0421U
申请日期
1949.12.12
申请人
WILHELM LOGES
发明人
WILHELM LOGES
分类号
主分类号
代理机构
代理人
主权项
地址
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