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(11)

EP 3 765 240 A1

(12)

(43) Date of publication: 20.01.2021 Bulletin 2021/03 (21) Application number: 19715226.7 (22) Date of filing: 12.03.2019

(51) International Patent Classification (IPC):  B24B 49/00(2012.01) B24B 7/22(2006.01) B24B 9/00(2006.01) B24B 49/02(2006.01) B24B 9/06(2006.01) (86) International application number: PCT/IB2019/051981 (87) International publication number: WO 2019/175759 (19.09.2019 Gazette 2019/38)

(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: 12.03.2018 IT 201800003456 (71) Applicant: Ancora S.p.A. 41049 Sassuolo (MO) (IT)	(72) Inventors: SALZONE, Rocco 41049 Sassuolo (Modena) (IT) STEFANI, Antonio 41049 Sassuolo (Modena) (IT) (74) Representative: Feltrinelli, Secondo Andrea et al APTA S.r.l. Patent Department Via Ca' di Cozzi, 41 37124 Verona 37124 Verona (IT)