Chemical additives for drilling muds; Chemicals for the treatment of water and wastewater; Chemicals for use in the field of oil exploration and production; Chemicals used in oil drilling; Oil-purifying chemicals; Oil-separating chemicals; Water-purifying chemicals; Wetting agents

OIL SEPARATION DEVICE, NAMELY, AN OIL FILTER FOR USE WITH GASOLINE AND DIESEL-POWERED INTERNAL COMBUSTION ENGINES

Sedimentation and Floatation Apparatus for Separating Water, Oil and Suspended Solids by Difference in Specific Gravities