Patent:ES218420

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Patent:ES 218420
Title:Sistema mecánico automático para sumar y restar
Date:13.12.1954
Place:
Country:Spain
Person:Hibernon Ramírez, Antonio
Company:
Internal Links:Scheibenzählwerk
Keywords:
Link to the patent office:
(without guarantee)
 ES218420 (http://v3.espacenet.com/textdoc?DB=EPODOC&F=0&IDX=ES218420)


 Bild (http://patentados.com/invento/sistema-mecanico-automatico-para-sumar-y-restar.html)

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