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发明名称
Vorrichtung zum Befahren und Reinigen stehender runder Abzugsschaechte
摘要
申请公布号
DE2129829(B1)
申请公布日期
1972.12.28
申请号
DE19712129829
申请日期
1971.06.16
申请人
SIEGENER AG GEISWEID
发明人
MICHEL,FRIEDRICH
分类号
E21D5/12
主分类号
E21D5/12
代理机构
代理人
主权项
地址
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