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发明名称
VERFAHREN ZUR HERSTELLUNG VON HERZSTUECKEN FUER WEICHEN UND KREUZUNGEN
摘要
申请公布号
DE2513086(B2)
申请公布日期
1977.09.22
申请号
DE19752513086
申请日期
1975.03.25
申请人
发明人
分类号
E01B7/12;(IPC1-7):E01B7/12;B23K37/04
主分类号
E01B7/12
代理机构
代理人
主权项
地址
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