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EP 3 810 432 A1

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(43) Date of publication: 28.04.2021 Bulletin 2021/17 (21) Application number: 19752554.6 (22) Date of filing: 19.06.2019

(51) International Patent Classification (IPC):  B41M 3/00(2006.01) B41M 7/00(2006.01) B44F 5/00(2006.01) B41M 3/14(2006.01) B44F 1/02(2006.01) B41M 5/26(2006.01) (86) International application number: PCT/IB2019/055177 (87) International publication number: WO 2019/244081 (26.12.2019 Gazette 2019/52)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 22.06.2018 PT 2018110798 (71) Applicants: INCM - Imprensa Nacional-Casa da Moeda, S.A. 1000-042 Lisboa (PT) Universidade de Coimbra 3004-531 Coimbra (PT)

(72) Inventors: MENDONÇA DA SILVA GONÇALVES, Nuno Miguel 1500-580 Lisboa (PT) SANTOS PATRÃO, Bruno André 3030-001 Coimbra (PT) MORAES VALLE CRUZ, Leandro 3030-243 Coimbra (PT) DIAS BARATA, Ricardo Jorge 3045-057 Coimbra (PT) DE ALMEIDA BARRETO, João Pedro 3000-045 Coimbra (PT) FREIRE DUARTE, João Pedro 3040-020 Coimbra (PT) PAULO MONTEIRO, Renato 2445-205 Pataias (PT) FERREIRA SARAIVA DA MOUTA DIAS, João Paulo 3030-199 Coimbra (PT) CAVALEIRO RODRIGUES DE CARVALHO, Albano Augusto 3030 199 Coimbra (PT) (74) Representative: Monteiro Alves, Inês  Alameda Dos Oceanos, Nº 41K-21 Parque das Nações 1990-207 Lisboa 1990-207 Lisboa (PT)