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EP 3 607 151 A2

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(88) Date of publication A3: 29.11.2018 (43) Date of publication: 12.02.2020 Bulletin 2020/07 (21) Application number: 18721145.3 (22) Date of filing: 04.04.2018

(51) International Patent Classification (IPC):  E04B 2/74(2006.01) E04F 13/00(2006.01) E04F 15/00(2006.01) (86) International application number: PCT/IB2018/052327 (87) International publication number: WO 2018/185679 (11.10.2018 Gazette 2018/41)

(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: 04.04.2017 IT 201700036880 04.04.2017 IT 201700036896 04.04.2017 IT 201700036902 (71) Applicant: C&G S.A.S. Di Ruggero Grandi & C. 36050 Quinto Vicentino (IT)

(72) Inventor: GRANDI, Ruggero 36050 Quinto Vicentino (IT) (74) Representative: Autuori, Angelo  Eureka IP Consulting Via Monte Cengio, 32 36100 Vicenza 36100 Vicenza (IT)