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Priority to HU0000156ApriorityCriticalpatent/HU221324B1/en
Publication of HU0000156D0publicationCriticalpatent/HU0000156D0/en
Publication of HUP0000156A2publicationCriticalpatent/HUP0000156A2/en
Publication of HU221324B1publicationCriticalpatent/HU221324B1/en