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发明名称
Doppelschaeftiger federnder Schienennagel
摘要
申请公布号
DE1106788(B)
申请公布日期
1961.05.18
申请号
DE1956W024198
申请日期
1956.04.09
申请人
ERWIN WIRSING
发明人
WIRSING ERWIN
分类号
E01B9/08
主分类号
E01B9/08
代理机构
代理人
主权项
地址
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