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Priority to GR560116969ApriorityCriticalpatent/GR16969B/el
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Συσκευη ητις εφαρμοζομενη επι των πλευρων των εν χρησει σωσιβιων λεμβων καθιστα ταυτας αβυθιστους και μη ανατρεπομενας μετα νεου συστηματος καλυψεως αυτων ανωθεν.