sentences:  Germany circumvented this restriction by creating various subsidiaries of their shipbuilding and design companies in third countries.One of these proxies, the Netherlands-based NV Ingenieurskantoor voor Scheepsbouw (IvS), a subsidiary of Deutsche Schiff- und Maschinenbau AG-AG Weser, was developing a submarine that matched Soviet requirements.The Spanish government, during General Primo de Rivera's dictatorship, showed interest in obtaining such a submarine for the Spanish Navy.