(19)

(11)

EP 4 824 502 A1

(12)

(43) Date of publication: 21.10.2026 Bulletin 2026/43 (21) Application number: 24828104.0 (22) Date of filing: 12.12.2024

(51) International Patent Classification (IPC):  F41J 1/08(2006.01) F41J 2/02(2006.01) F41J 2/00(2006.01) (52) Cooperative Patent Classification (CPC): F41J 1/08; F41J 2/00; F41J 2/02 (86) International application number: PCT/FI2024/050680 (87) International publication number: WO 2025/125723 (19.06.2025 Gazette 2025/25)

(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: GE KH MA MD TN (30) Priority: 14.12.2023 FI 20236369 (71) Applicant: Dobbelgänger Oy 90620 Oulu (FI)	(72) Inventors: MÄKINEN, Vili-Jussi 90620 Oulu (FI) KOLOLUOMA, Terho 90620 Oulu (FI) TRTNIK, Ales 90620 Oulu (FI) (74) Representative: Laine IP Oy  Porkkalankatu 24 00180 Helsinki 00180 Helsinki (FI)