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发明名称
Einrichtung zum Aufrauhen der Mantelflaeche von mit einem UEberzuge zu versehenden Schweisselektroden durch Walzen
摘要
申请公布号
DE533688(C)
申请公布日期
1931.09.17
申请号
DE1929ST46405D
申请日期
1929.09.08
申请人
Firma Franz H.Stromberg
发明人
分类号
B21B1/16;B23K35/40
主分类号
B21B1/16
代理机构
代理人
主权项
地址
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