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发明名称
Verfahren zum Herstellen eines aus einem stern- oder scheibenfoermigen Radkoerper weniger hochwertigen Werkstoffs und einem aufgeschweissten Zahnkranz hochwertigen Werkstoffs bestehenden Grosszahnrades fuer elektrische Bahngetriebe
摘要
申请公布号
DE917589(C)
申请公布日期
1954.09.06
申请号
DE1950L007989
申请日期
1950.12.28
申请人
LICENTIA PATENT-VERWALTUNGS-G.M.B.H.
发明人
RIHM FRIEDRICH
分类号
B23K31/02
主分类号
B23K31/02
代理机构
代理人
主权项
地址
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