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发明名称
Verfahren und Vorrichtung zum Innenabdichten und/oder Verengen des Querschnitts von Schornsteinen
摘要
申请公布号
DE1683090(A1)
申请公布日期
1970.05.06
申请号
DE19661683090
申请日期
1966.06.21
申请人
ALPATEC AG
发明人
分类号
E04F21/14
主分类号
E04F21/14
代理机构
代理人
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