FEEDER SCREEN
LITVINOV VLADIMIR G,SU, LITVINOVA NATALIYA F,SU, RIZA VALENTIN B,SU, GRIGOREVA TAMARA V,SU
Year of Publication 05.05.1980
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Year of Publication 05.05.1980
Patent
SCREW CONVEYER
LITVINOV VLADIMIR G,SU, LITVINOVA NATALIYA F,SU, RIZA VALENTIN B,SU, SHMAL YURIJ D,SU, GRIGOREVA TAMARA V,SU
Year of Publication 30.10.1978
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Year of Publication 30.10.1978
Patent