<TABLE> <S> <C>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
COMPANY'S BALANCE SHEETS AND CONSOLIDATED STATEMENTS OF INCOME AND IS
QUALIFIED IN ITS ENTIRETY TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS
<S> <C>
<PERIOD-TYPE> 9-MOS
<FISCAL-YEAR-END> JUL-31-2000
<PERIOD-START> FEB-01-2000
<PERIOD-END> APR-30-2000
<EXCHANGE-RATE> 1
<CASH> 15993
<SECURITIES> 88173
<RECEIVABLES> 58064
<ALLOWANCES> 1710
<INVENTORY> 69418
<CURRENT-ASSETS> 241519
<PP&E> 177057
<DEPRECIATION> 112734
<TOTAL-ASSETS> 320951
<CURRENT-LIABILITIES> 35927
<BONDS> 0
0
0
<COMMON> 699
<OTHER-SE> 272553
<TOTAL-LIABILITY-AND-EQUITY> 320951
<SALES> 194464
<TOTAL-REVENUES> 208451
<CGS> 124589
<TOTAL-COSTS> 129085
<OTHER-EXPENSES> 64448
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 234
<INCOME-PRETAX> 12738
<INCOME-TAX> 3950
<INCOME-CONTINUING> 8703
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 8703
<EPS-BASIC> 0.68
<EPS-DILUTED> 0.68
</TABLE>