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发明名称
Wurzelabweisender Aussenschutz von Rohrleitungen, Behaeltern, Bauwerken usw.
摘要
申请公布号
DE977487(C)
申请公布日期
1966.08.18
申请号
DE1953K018980
申请日期
1953.07.30
申请人
J. & OTTO KREBBER
发明人
分类号
F16L58/16
主分类号
F16L58/16
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代理人
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