En
RuCopyright certificates for inventions
Copyright certificates for inventions
Copyright certificate No. 142258 for the invention "Roller Fix", the authors of the invention - Romanov V. P. [et al.]
Copyright Certificate No. 142258 for the invention "Roller Fix", the authors of the invention - Romanov V. P. [et al.].
2021.
Museum-Reserve "Red Gorka"
Copyright certificate No. 201282 for the invention "The method of excavation of powerful cooling coal reservoirs", the authors of the invention - Romanov V. P. [and others]
Copyright certificate No. 201282 for the invention "The method of excavation of powerful cooling coal reservoirs", the authors of the invention - Romanov V. P. [et al.].
2021.
Museum-Reserve "Red Gorka"
1967
Copyright certificate No. 401811 for the invention "Device to facilitate the movement of people", the authors of the invention - Romanov V. P. [and others]
Copyright certificate No. 401811 for the invention "Device to facilitate the movement of people", the authors of the invention - Romanov V. P. [et al.].
2021.
Museum-Reserve "Red Gorka"
1973
1962