. . . . "9" . "Proton launch vehicle" . . "Proton series" . . . . . "6.9381E8" . "Proton (rocket family)" . . . . . "Proton (UR-500)" . . . "311" . . "''Proton''" . . "4" . "Proton (rocket family)#Proton-M" . . . . "Proton-K/Blok-DM3" . "53.0" . . . "Proton launcher" . . "275" . . . . . . "1" . "UR-500 / Proton family" . "8K82" . "2012-03-30" . . "Proton Breeze M" . . "3" . . . . "7.4" . "Proton (rocket family)#Proton M" . . "Proton rocket" . "44" . "2021-12-13" . "112" . . "101" . . . "3" . . "Proton K" . "Proton 1" . . "Active" . . "379" . "4" . . . . . . . . "UR-500" . . "Proton rockets" . . . "proton rocket" . "Proton first-stage booster" . . . . "Proton" . . "2001-04-07" . "Proton rocket family" . . "Proton family rocket" . "1967-03-10" . . . "Russian Proton rocket" . "427" . "34" . . "4" . . . . . . . "Proton (rocket family)" . "Proton-K" . "2" . . "1965-07-16" . . "1966-07-06" . "Proton launch vehicles" . . "Proton-K D rocket" . .