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(11)

EP 4 313 484 A1

(12)

(43) Date of publication: 07.02.2024 Bulletin 2024/06 (21) Application number: 22718813.3 (22) Date of filing: 22.03.2022

(51) International Patent Classification (IPC):  B24B 7/06(2006.01) B24B 21/08(2006.01) B24D 11/00(2006.01) B24D 5/06(2006.01) B24B 21/04(2006.01) B24B 7/22(2006.01) B24D 3/00(2006.01) B24D 7/06(2006.01) B24D 18/00(2006.01) (52) Cooperative Patent Classification (CPC): B24B 7/06; B24B 7/22; B24B 21/08; B24D 3/007; B24D 11/00; B24D 7/06; B24D 5/06; B24D 18/0009; B24B 21/04; B24D 11/001 (86) International application number: PCT/IT2022/050066 (87) International publication number: WO 2022/201213 (29.09.2022 Gazette 2022/39)

(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: 25.03.2021 IT 202100007232 (71) Applicant: Surfaces Technological Abrasives S.P.A. 24069 Cenate Sotto (BG) (IT)	(72) Inventor: ROTA, Giuseppe 24069 Cenate Sotto (IT) (74) Representative: Petraz, Davide Luigi et al GLP S.r.l Viale Europa Unita, 171 33100 Udine 33100 Udine (IT)