2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/49636We present main points of some of Fock papers in Quantum Theory, which were not properly followed when published.9 pages, Latex, to be published in the Proceedings of the UNESCO International School of Physics "Quantum Theory ' part 2, commemorating the 100th anniversary of the birth of V.A.Fock. St.Peterburg, SPbU, 1999High Energy Physics - PhenomenologyKlein-Fock equation, proper-time formalism and symmetry of Hydrogen atomtext