Rail fastening
OwnerBoris Vladimilenovich Naumov, Aleksandr Alekseevich Bobryshev +3inventors
InventorsBoris Vladimilenovich Naumov, Aleksandr Alekseevich Bobryshev, Leonid Valentinovich Groshev, Vladimir Igorievich Eramov, Sergei Jurievich Lubotsky
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