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Priority to PL18751876ApriorityCriticalpatent/PL99716B3/pl
Publication of PL99716B3publicationCriticalpatent/PL99716B3/pl
PL18751876A1976-02-251976-02-25Element do wykonania scianki,zwlaszcza do regulacji rzeki oraz sposob wykonania scianki,zwlaszcza do regulacji rzeki
PL99716B3
(pl)