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Priority claimed from CH109787Aexternal-prioritypatent/CH668159GA3/en
Priority claimed from CH403587Aexternal-prioritypatent/CH671495GA3/en
Application filed by Ebauchesfabrik Eta AgfiledCriticalEbauchesfabrik Eta Ag
Priority to SG2994ApriorityCriticalpatent/SG2994G/en
Publication of SG2994GpublicationCriticalpatent/SG2994G/en