Back Февраль патенты Bashkir Únorová ústava Czech Februarpatent German Patente de febrero Spanish Patente de février French Veljački patent Croatian Februári pátens Hungarian Փետրվարյան արտոնագիր Armenian Februarpatent ID Patente di febbraio Italian
The February Patent was a constitution of the Austrian Empire promulgated in the form of letters patent on 26 February 1861.