(19)

(11)

EP 3 500 819 A1

(12)

(43) Date of publication: 26.06.2019 Bulletin 2019/26 (21) Application number: 17713369.1 (22) Date of filing: 17.02.2017

(51) International Patent Classification (IPC):  G01B 3/00(2006.01) G01B 3/04(2006.01) (86) International application number: PCT/GB2017/050425 (87) International publication number: WO 2017/141053 (24.08.2017 Gazette 2017/34)

(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 (30) Priority: 17.02.2016 GB 201602821 (71) Applicant: Hassan, Abdillahi Ahmed Mohammed Slough, Berkshire SL1 2HP (GB)	(72) Inventor: Hassan, Abdillahi Ahmed Mohammed Slough, Berkshire SL1 2HP (GB) (74) Representative: Avidity IP  Broers Building Hauser Forum 21 JJ Thomson Avenue Cambridge CB3 0FA Cambridge CB3 0FA (GB)