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发明名称
Verfahren zum stellenweisen Härten von Gegenständen durch Nitrieren.
摘要
申请公布号
AT124247(B)
申请公布日期
1931.08.25
申请号
ATD124247
申请日期
1928.01.11
申请人
AUBERT & DUVAL FRERES
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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