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Priority claimed from FI803228Aexternal-prioritypatent/FI62753C/fi
Application filed by Ensio SalminenfiledCriticalEnsio Salminen
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Publication of ATE7564T1publicationCriticalpatent/ATE7564T1/de
AT81902985T1980-10-101981-10-09Verfahren und vorrichtung, um das ersticken von ferkeln unter dem mutterschwein in einer aufzuchtbucht zu verhindern.
ATE7564T1
(de)