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发明名称
Weckeruhr mit einer Vorrichtung zum selbsttätigen Verändern der Lautstärke während des Ablaufes.
摘要
申请公布号
CH287286(A)
申请公布日期
1952.11.30
申请号
CHD287286
申请日期
1950.10.02
申请人
HELMUT JUNGHANS;GEBRUEDER JUNGHANS AG.
发明人
HELMUT JUNGHANS
分类号
G04B23/10
主分类号
G04B23/10
代理机构
代理人
主权项
地址
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