Patent of Kazakhstan: №23427 Author: Tkachenko Yuriy Vladimirovich Section of the IPC: B21F 25/00, E04H 17/04 Published: 15.12.2010 bulletin №12
Russian Federation Patent: №2433233 Author: Tkachenko Yuriy Vladimirovich Section of the IPC: B21F 25/00, E04H 17/14 Published: 10.11.2011
Patent of Kazakhstan: №23425 Author: Tkachenko Yuriy Vladimirovich Section of the IPC: B21F 25/00 Published: 15.12.2010 Bulletin №12
Russian Federation Patent: №97423 Author: Tkachenko Yuriy Vladimirovich Section of the IPC: B21F 25/00, E04H 17/04 Published: 27.04.2010
Patent of Ukraine: №50492 Author: Tkachenko Yuriy Vladimirovich Section of the IPC: B21F 25/00, E04H 17/04 Published: 10.06.2010, Bulletin No 11
Russian Patent: №93038 Author: Tkachenko Yuriy Vladimirovich Section of the IPC: B21F 25/00, E04H 17/04 Published: 20.04.2010
Patent of Ukraine: №48354 Author: Tkachenko Yuriy Vladimirovich Section of the IPC: B21F 25/00, E04H 17/04 Published: 10.03.2010, Bulletin № 5/2010
Russian Federation Patent: №91015 Author: Tkachenko Yuriy Vladimirovich Section of the IPC: B21F 25/00 Published: 27.01.2010
Patent of Ukraine: №45934 Author: Tkachenko Yuriy Vladimirovich Section of the IPC: B21F 25/00 Published: 25.11.2009, Bulletin № 22/2009
Kazakhstan Patent: №22995 Author: Tkachenko Yuriy Vladimirovich Section of the IPC: B21F 25/00 Published: 15.10.2010, Bulletin №10