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发明名称
Rollring mit Aufrollippe, bestehend aus Gummi oder gummielastischem Material, zum Abdichten einer Muffenverbindung von Rohren, insbesondere Tonrohren
摘要
申请公布号
CH449352(A)
申请公布日期
1967.12.31
申请号
CH19660018016
申请日期
1966.12.16
申请人
WESTLAND-GUMMIWERKE GMBH & CO.
发明人
NEDDEN,ERNST ZUR
分类号
F16L21/025
主分类号
F16L21/025
代理机构
代理人
主权项
地址
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