(19)

(11)

EP 3 391 155 A1

(12)

(43) Date of publication: 24.10.2018 Bulletin 2018/43 (21) Application number: 16831913.5 (22) Date of filing: 14.12.2016

(51) International Patent Classification (IPC):  G04B 19/02(2006.01) G04B 19/23(2006.01) G04B 19/08(2006.01) (86) International application number: PCT/IB2016/057598 (87) International publication number: WO 2017/103800 (22.06.2017 Gazette 2017/25)

(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 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: 15.12.2015 IT UB20159707 (71) Applicant: Hi-Tek Office S.r.l. 55100 Antraccoli (IT)	(72) Inventor: FONTANA, Italo 55100 Lucca (IT) (74) Representative: Torti, Carlo Maria Emilio et al Notarbartolo & Gervasi S.p.A. Corso di Porta Vittoria, 9 20122 Milano 20122 Milano (IT)