Those sales totaled $2.8 billion in the fourth quarter of 1989, a new study has found.
Net income totaled $487.2 million, or 61 cents a share, in the latest quarter.
Its revenues totaled $1.35 billion, down by nearly 3 percent from $1.39 billion in the 1990 quarter.
Revenues totaled $4.77 billion, up about 5 percent from $4.54 billion in the 1989 quarter.
Revenues totaled $1.1 billion in the latest quarter, up from $1 billion a year before.
Sales totalled $972 million in the fourth quarter last year.
Fees from the services totaled $104 million in the quarter, up 49 percent.
Revenue totaled $703.8 million in the first quarter, compared with $704.9 million the year before.
Northrop's sales totaled $1.28 billion in the 1990 quarter, the same level recorded last year.
The news release says these totaled $428.1 million in the quarter.
