(19)

(11)

EP 4 320 610 A1

(12)

(43) Date of publication: 14.02.2024 Bulletin 2024/07 (21) Application number: 22718987.5 (22) Date of filing: 31.03.2022

(51) International Patent Classification (IPC):  G09F 9/33(2006.01) G09F 23/04(2006.01) G09F 23/00(2006.01) H02G 3/08(2006.01) (52) Cooperative Patent Classification (CPC): G09F 9/33; G09F 23/04; G09F 23/00; H02G 3/14 (86) International application number: PCT/EP2022/058602 (87) International publication number: WO 2022/214386 (13.10.2022 Gazette 2022/41)

(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: 07.04.2021 IT 202100008663 (71) Applicant: GEWISS S.p.A. 24069 Cenate Sotto (Bergamo) (IT)	(72) Inventor: BOSATELLI, Domenico 24069 Cenate Sotto (Bergamo) (IT) (74) Representative: Forattini, Amelia  INTERNAZIONALE BREVETTI INGG. ZINI, MARANESI & C. S.R.L. Piazza Castello 1 20121 MILANO 20121 MILANO (IT)