Patent of Russia: № 2569609 Author: Tkachenko Yuriy Vladimirovich Sections of the IPC: B21F 29/00, E04H 17/04, B21F 27/08 Published: 25.04.2014, Bulletin 8
Russian Patent: № 2475326 Author: Tkachenko Yuriy Vladimirovich Section of the IPC: B21F 25/00 Published: 20.02.2013
Russian Patent: №91903 Author: Tkachenko Yuriy Vladimirovich Section of the IPC: B21F 25/00 Published: 10.03.2010
Russian Federation Patent: №93039 Author: Tkachenko Yuriy Vladimirovich Section of the IPC: B21F 25/00, E04H 17/04 Published: 20.04.2010
Russian Patent: №93316 Author: Tkachenko Yuriy Vladimirovich Section of the IPC: B21F 25/00 Published: 27.04.2010
Russian Patent: №2431582 Author: Tkachenko Yuriy Vladimirovich Section of the IPC: B21F 25/00, B63G 13/00 Published: 20.10.2011
Russian Federation Patent: №96040 Author: Tkachenko Yuriy Vladimirovich Section of the IPC: B21F 25/00, E04H 17/04 Published: 20/07/2010
Russian Federation Patent: №2433233 Author: Tkachenko Yuriy Vladimirovich Section of the IPC: B21F 25/00, E04H 17/14 Published: 10.11.2011
Russian Federation Patent: №97423 Author: Tkachenko Yuriy Vladimirovich Section of the IPC: B21F 25/00, E04H 17/04 Published: 27.04.2010
Russian Patent: №93038 Author: Tkachenko Yuriy Vladimirovich Section of the IPC: B21F 25/00, E04H 17/04 Published: 20.04.2010