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发明名称
Einrichtung an einem Federtriebwerk zum selbsttätigen Aufziehen der Triebfeder.
摘要
申请公布号
CH270307(A)
申请公布日期
1950.08.31
申请号
CHD270307
申请日期
1948.12.20
申请人
NECHVATAL,JAROSLAV;NECHVATAL,ARNOST
发明人
NECHVATAL,JAROSLAV;NECHVATAL,ARNOST
分类号
G04C1/06
主分类号
G04C1/06
代理机构
代理人
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