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Publication of BE611077RpublicationCriticalpatent/BE611077R/fr
H01H67/26—Co-ordinate-type selector switches not having relays at cross-points but involving mechanical movement, e.g. cross-bar switch, code-bar switch
BE611077A1960-12-031961-12-04Perfectionnements aux dispositifs de commutation
BE611077R
(fr)