<ARTICLE> 5 <MULTIPLIER> 1,000 <PERIOD-TYPE> 9-MOS <FISCAL-YEAR-END> DEC-31-1995 <PERIOD-END> SEP-30-1995 <CASH> 1,979 <SECURITIES> 31,341 <RECEIVABLES> 146,952 <ALLOWANCES> 0 <INVENTORY> 78,925 <CURRENT-ASSETS> 7,763 <PP&E> 373,024 <DEPRECIATION> 183,098 <TOTAL-ASSETS> 547,930 <CURRENT-LIABILITIES> 195,442 <BONDS> 0 <COMMON> 56,988 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <OTHER-SE> 152,733 <TOTAL-LIABILITY-AND-EQUITY> 547,930 <SALES> 439,482 <TOTAL-REVENUES> 439,482 <CGS> 180,581 <TOTAL-COSTS> 180,581 <OTHER-EXPENSES> 87,634 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 7,785 <INCOME-PRETAX> 80,999 <INCOME-TAX> 18,225 <INCOME-CONTINUING> 62,774 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 62,774 <EPS-PRIMARY> 1.39 <EPS-DILUTED> 0