00944cam a22002531 4500 agr20001757 DLC 20260227110941.0 740627s1920 xx 000 0 eng agr20001757 (OCoLC)930933 DLC N DLC premarc TS2149 .U55 United States Grain Corporation. Proceedings of conference of men engaged in grain dust explosion and fire prevention campaign, conducted by United States Grain Corporation in cooperation with Bureau of Chemistry, United States Department of Agriculture ... April 22-24, 1920. New York, 1920. ii, 159 p. illus. 23 cm. Cover title. Dust explosions. Grain elevators Fires and fire prevention. United States. Bureau of Chemistry. Grain dust explosion and fire prevention campaign. 8688 8688