Most of the world's companies do not hide that they produce and sell machines for heavy industry made according to the principle of the two-stage mechanical oscillator invented by Novi Sad resident Veljko Milković. about 500 such companies have no problem putting the name of our famous inventor, however there are quite a number of those who do not mention his name.
Internet website Šareni portal published an interview with academician Veljko Milković on the topic of the two-stage mechanical oscillator and companies that produce industrial machines around the world that rely on this patented technology.
The Slovenian internet portal Štajerske Novice publishes an article about Veljko Milković with the following introduction: "The revolutionary invention of the Serbian inventor in the field of mechanics, Veljko Milković, is used by hundreds of world companies. The highest achievement is the construction of a mechanical power plant in India."