METHOD AND MACHINE FOR MAKING MOULD CORES
A Standard patent application filed on 29 May 1981 credited to Ledyan, Yury Pavlovich
;
Kukui, Davyd Mikhailovich
;
Kechin, Oleg Nikolaevich
;
Bass, Vadim Gerasimovich
;
Melnikov, Aleksandr Timofeevich
;
Matlin, Iosif Avseevich