Compagnie des Machines Bull SA is looking to cut another 3,000 jobs from its global payroll of about 35,000, chairman Bernard Pache said yesterday as he presented the figures for 1992 (see page six). He said that it had not yet been decided how to go about making the cuts in all areas, notably in France, and it is not clear whether the figure of 3,000 includes the 800 to 900 positions that Bull said last week that it intended to eliminate in France.