Bull SA yesterday confirmed its intention to raise its stake in Honeywell Bull Inc to 65% at the end of the year, from the present 42.5%; the switch will leave Honeywell Inc with 20% and NEC Corp of Tokyo with 15%. Bull chairman Jacques Stern, in Billerica, Massachusetts for ceremonies at the start of building of Honeywell Bull’s new headquarters, said the change of financial control would not affect existing structure, marketing or management. While the present owners of Honeywell Bull could meet its cash needs from own resources, bond issues or a float were possible.