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Comhaontú Strasbourg an 24 Márta, 1971, a Bhaineann le hAicmiú Idirnáisiúnta Paitinní, arna leasú an 28 Meán Fómhair, 1979.
STRASBOURG AGREEMENT CONCERNING THE INTERNATIONAL PATENT CLASSIFICATION OF MARCH 24, 1971, AS AMENDED ON SEPTEMBER 28, 1979.