"2006.06.15" . "Used in well drilling operations." . "A physical object that consists of wedge-shaped pieces of metal loosely joined together and fitted into a bushing to support a string of pipe. The slips have gripping elements to prevent the pipe from slipping down the drilling hole." . "u83130" . "Qualified" . "SLIPS" . "SLIPS" . "578984600" . "RDS5789846" . .