(19)

(11)

EP 4 168 144 A1

(12)

(43) Date of publication: 26.04.2023 Bulletin 2023/17 (21) Application number: 20733609.0 (22) Date of filing: 17.06.2020

(51) International Patent Classification (IPC):  A63H 33/18(2006.01) (52) Cooperative Patent Classification (CPC): A63H 33/18 (86) International application number: PCT/EP2020/066796 (87) International publication number: WO 2021/254609 (23.12.2021 Gazette 2021/51)

(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 (71) Applicant: Waboba AB 117 26 Stockholm (SE)	(72) Inventor: VON HELAND, Axel 121 34 Enskededalen (SE) (74) Representative: Kransell & Wennborg KB  P.O. Box 27834 115 93 Stockholm 115 93 Stockholm (SE)