(19)

(11)

EP 3 787 823 A1

(12)

(43) Date of publication: 10.03.2021 Bulletin 2021/10 (21) Application number: 19726173.8 (22) Date of filing: 02.05.2019

(51) International Patent Classification (IPC):  B23B 13/02(2006.01) B23B 13/12(2006.01) B23B 13/08(2006.01) (86) International application number: PCT/IT2019/050089 (87) International publication number: WO 2019/211883 (07.11.2019 Gazette 2019/45)

(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: 04.05.2018 IT 201800005069 (71) Applicant: METAL ART DI FRANCO E MAURO TRANQUILLI S.R.L. 60019 Senigallia (IT)	(72) Inventor: TRANQUILLI, Franco 60019 SENIGALLIA (IT) (74) Representative: Palestrini, Mauro  Brema S.r.l. Piazza E. Enriquez, 22c 47891 Dogana 47891 Dogana (SM)