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发明名称
Appareil avertisseur
摘要
申请公布号
CH318519(A)
申请公布日期
1957.01.15
申请号
CHD318519
申请日期
1954.08.04
申请人
BAUMGARTNER FRERES S. A.
发明人
DUCOMMUN,GEORGES
分类号
G04B37/12
主分类号
G04B37/12
代理机构
代理人
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