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发明名称
Dispositif avertisseur de rappel pour installations de commande à distance agissant sur des appareils d'alarme, avec emploi de sélecteurs de contact à marche synchrone
摘要
申请公布号
FR832609(A)
申请公布日期
1938.09.29
申请号
FRD832609
申请日期
1938.01.25
申请人
LANDIS & GYR S. A.
发明人
分类号
H04M11/04
主分类号
H04M11/04
代理机构
代理人
主权项
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