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Priority to ES0307814ApriorityCriticalpatent/ES307814A1/en
Publication of ES307814A1publicationCriticalpatent/ES307814A1/en
Improvements in keypad switches, essentially consisting of one of the keys operated by the keys has a housing in which a ball formed at the end of the actuation element of a polyphase switch is coupled, each of the contacts of said polyphase switch interleaved in each of the conductors of the power circuit. (Machine-translation by Google Translate, not legally binding)
ES0307814A1964-12-231964-12-23Improvements in botoner switches. (Machine-translation by Google Translate, not legally binding)
ExpiredES307814A1
(en)
Improvements in the structuring of mechanical systems for the connection and switching of electric circuits. (Machine-translation by Google Translate, not legally binding)