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Application filed by Ancienne Fabrique Vacheron & CfiledCriticalAncienne Fabrique Vacheron & C
Publication of CH575ApublicationCriticalpatent/CH575A/fr
Un resultado industrial que consiste en facilitar al público, mediante un aparato especial gemelos de teatro para que pueda servirse de ellos durante las representaciones, cuyos gemelos están sujetos a dicho aparato.