(19)

(11)

EP 3 807 488 A1

(12)

(43) Date of publication: 21.04.2021 Bulletin 2021/16 (21) Application number: 19731246.5 (22) Date of filing: 13.06.2019

(51) International Patent Classification (IPC):  E06C 7/18(2006.01) E06C 7/48(2006.01) (86) International application number: PCT/EP2019/065545 (87) International publication number: WO 2019/238845 (19.12.2019 Gazette 2019/51)

(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 (30) Priority: 14.06.2018 NL 2021119 (71) Applicant: Smart Level Company 5804 BV Venray (NL)	(72) Inventor: BUS, Karolus Theodorus Wilhelmina Maria 5804 BV Venray (NL)