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经营范围
发明名称
RUECKSTAUVERSCHLUSS IN ABWASSERLEITUNGEN.
摘要
申请公布号
DE1736579(U)
申请公布日期
1956.12.20
申请号
DE195600B7359U
申请日期
1956.10.11
申请人
BOEKHOFF & CO.
发明人
分类号
E03F5/042
主分类号
E03F5/042
代理机构
代理人
主权项
地址
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