<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
UNAUDITED CONSOLIDATED CONDENSED STATEMENT OF EARNINGS AND THE UNAUDITED
CONSOLIDATED CONDENSED BALANCE SHEETS OF THE REGISTRANT FOR THE NINE MONTHS
ENDED SEPTEMBER 30, 1997 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO
SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               SEP-30-1997
<CASH>                                          46,798
<SECURITIES>                                     1,126
<RECEIVABLES>                                  219,785
<ALLOWANCES>                                    12,392
<INVENTORY>                                     57,217
<CURRENT-ASSETS>                               370,884
<PP&E>                                         400,555
<DEPRECIATION>                                 254,949
<TOTAL-ASSETS>                                 672,315
<CURRENT-LIABILITIES>                          136,919
<BONDS>                                         12,929
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        22,778
<OTHER-SE>                                       4,076
<TOTAL-LIABILITY-AND-EQUITY>                   672,315
<SALES>                                        566,508
<TOTAL-REVENUES>                               575,819
<CGS>                                          331,863
<TOTAL-COSTS>                                  331,863
<OTHER-EXPENSES>                               153,139
<LOSS-PROVISION>                                 1,218
<INTEREST-EXPENSE>                               1,178
<INCOME-PRETAX>                                 89,639
<INCOME-TAX>                                    34,545
<INCOME-CONTINUING>                                  0
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    55,094
<EPS-PRIMARY>                                     2.40
<EPS-DILUTED>                                     2.40