<ARTICLE> 5 <RESTATED> <MULTIPLIER> 1,000 <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> DEC-31-1996 <PERIOD-END> JUN-30-1996 <CASH> 1,830 <SECURITIES> 22,009 <RECEIVABLES> 158,637 <ALLOWANCES> 0 <INVENTORY> 85,870 <CURRENT-ASSETS> 278,427 <PP&E> 376,139 <DEPRECIATION> 188,906 <TOTAL-ASSETS> 553,382 <CURRENT-LIABILITIES> 201,076 <BONDS> 0 <COMMON> 56,988 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <OTHER-SE> 169,780 <TOTAL-LIABILITY-AND-EQUITY> 553,382 <SALES> 318,404 <TOTAL-REVENUES> 318,404 <CGS> 127,358 <TOTAL-COSTS> 127,358 <OTHER-EXPENSES> 121,349 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 5,655 <INCOME-PRETAX> 65,416 <INCOME-TAX> 15,373 <INCOME-CONTINUING> 50,043 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 50,043 <EPS-PRIMARY> 1.14 <EPS-DILUTED> 1.12