(19)

(11)

EP 3 768 903 A2

(12)

(88) Date of publication A3: 06.02.2020 (43) Date of publication: 27.01.2021 Bulletin 2021/04 (21) Application number: 19796195.6 (22) Date of filing: 19.03.2019

(51) International Patent Classification (IPC):  E03C 1/10(2006.01) E03D 9/08(2006.01) (86) International application number: PCT/TR2019/050175 (87) International publication number: WO 2019/212445 (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: 21.03.2018 TR 201803969 (71) Applicant: ECZACIBASI YAPI GERECLERI SANAYI VE TICARET ANONIM SIRKETI 34394 Istanbul (TR)	(72) Inventors: KEMANECI, Halil Ibrahim 11300 Bozuyuk/Bilecik (TR) SIMSIR, Bogac Umraniye/Istanbul (TR) SARIGOL, Suleyman Vedat 11300 Bozuyuk/Bilecik (TR) HOCAOGLU, Recep Bozuyuk/Bilecik (TR) (74) Representative: Petraz, Gilberto Luigi et al GLP S.r.l. Viale Europa Unita, 171 33100 Udine Viale Europa Unita, 171 33100 Udine (IT)