(19)

(11)

EP 3 414 752 A1

(12)

(43) Date of publication: 19.12.2018 Bulletin 2018/51 (21) Application number: 17750599.7 (22) Date of filing: 03.02.2017

(51) International Patent Classification (IPC):  G09B 11/00(2006.01) G09B 11/06(2006.01) G09B 11/04(2006.01) (86) International application number: PCT/US2017/016519 (87) International publication number: WO 2017/139202 (17.08.2017 Gazette 2017/33)

(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: MA MD (30) Priority: 08.02.2016 US 201615018392 (71) Applicant: Bohacheff, Chan Wang Charles, NC 28210 (US)	(72) Inventor: Bohacheff, Chan Wang Charles, NC 28210 (US) (74) Representative: Phillips & Leigh LLP  Temple Chambers 3-7 Temple Avenue London EC4Y 0DA London EC4Y 0DA (GB)