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发明名称
Bouton électrique d'appel avec réponse automatique
摘要
申请公布号
FR852928(A)
申请公布日期
1940.03.06
申请号
FRD852928
申请日期
1939.04.12
申请人
发明人
JOSEPH DOLCIANI
分类号
G08B5/36
主分类号
G08B5/36
代理机构
代理人
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