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Individual
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Individual
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Publication of ES428396A1publicationCriticalpatent/ES428396A1/en
A boat with two hulls, characterized in that each hull is symmetrical in cross section at least in the part of it located below the waterline. (Machine-translation by Google Translate, not legally binding)
ES428396A1973-07-111974-07-10A boat of two helmets. (Machine-translation by Google Translate, not legally binding)
ExpiredES428396A1
(en)