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Application filed by Gibbons Houskeeper WilliamfiledCriticalGibbons Houskeeper William
Publication of CH55116ApublicationCriticalpatent/CH55116A/fr
CH55116A1910-11-021910-11-02Dispositif de contact à mercure pour appareils servant à la préparation de filaments conducteurs de lampes électriques
CH55116A
(fr)