Milentije Mića Randjelović with his scientific work appeared with the desire to make progress in electrical engineering and physics, transportation, and construction. Everything was ready for great discoveries. Through hard, serious, and diligent work he made results that many can only dream of. During all that time, he designed, patented, and put 14 patents into serial pro- duction, used by our and other national economies. The invention process is the highest sphere of science classified under inventive work. It is suc- cessfully practiced solely by exceptionally naturally gifted people. This is how CABLE LIGHTNING ROD, an epochal invention en- tered the serial produ- ction after many years of testing, entered serial ma- nufacturing.