<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED FINANCIAL STATEMENTS AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE
TO SUCH CONSOLIDATED FINANCIAL STATEMENTS AND NOTES.
</LEGEND>
<MULTIPLIER> 1,000

                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-END>                               SEP-30-1999
<CASH>                                          46,521
<SECURITIES>                                   120,691
<RECEIVABLES>                                  275,916
<ALLOWANCES>                                   (18,807)
<INVENTORY>                                    215,907
<CURRENT-ASSETS>                               775,166
<PP&E>                                         975,385
<DEPRECIATION>                                (764,411)
<TOTAL-ASSETS>                               1,141,684
<CURRENT-LIABILITIES>                          369,137
<BONDS>                                          1,207
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           419
<OTHER-SE>                                     719,544
<TOTAL-LIABILITY-AND-EQUITY>                 1,141,684
<SALES>                                      1,041,433
<TOTAL-REVENUES>                             1,041,433
<CGS>                                          719,908
<TOTAL-COSTS>                                  719,908
<OTHER-EXPENSES>                               277,412
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               1,413
<INCOME-PRETAX>                                 46,554
<INCOME-TAX>                                    18,600
<INCOME-CONTINUING>                             27,954
<DISCONTINUED>                                   1,630
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    29,584
<EPS-BASIC>                                       0.79
<EPS-DILUTED>                                     0.78