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发明名称
Verfahren zur Herstellung von Federn, insbesondere für Uhren
摘要
申请公布号
CH331268(A)
申请公布日期
1958.07.15
申请号
CHD331268
申请日期
1954.10.18
申请人
INSTITUT DR. ING. REINHARD STRAUMANN AG.
发明人
ING. STRAUMANN,REINHARD,DR.
分类号
B21B1/40;B21B3/02;C21D9/02;G04B1/14
主分类号
B21B1/40
代理机构
代理人
主权项
地址
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