[FILTERS USED FOR MEASURING INDUSTRIAL DUSTS].
D003604:Czechoslovakia; D004391:Dust; D005374:Filtration; D006801:Humans; D007221:Industry; D009787:Occupational Medicine
D004391:Dust
CZECHOSLOVAKIA; DUST; FILTRATION; INDUSTRIAL MEDICINE
FILTRY POU Z'IVAN'E K M E REN'I PRUMYSLOV'E PRA SNOSTI.