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发明名称
Geraeuschmindernde Schienen
摘要
申请公布号
DE1903177(A1)
申请公布日期
1969.10.23
申请号
DE19691903177
申请日期
1969.01.23
申请人
ELEKTRO-THERMIT GMBH
发明人
GERHARD ARNDT
分类号
C22C9/00;E01B5/10
主分类号
C22C9/00
代理机构
代理人
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