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<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<S> <C>
<PERIOD-TYPE> 3-MOS
<FISCAL-YEAR-END> JAN-31-2001
<PERIOD-START> FEB-01-2000
<PERIOD-END> APR-29-2000
<CASH> 1,288,952
<SECURITIES> 7,520,151
<RECEIVABLES> 9,788,191
<ALLOWANCES> 400,029
<INVENTORY> 12,301,586
<CURRENT-ASSETS> 32,485,694
<PP&E> 20,369,612
<DEPRECIATION> 12,914,098
<TOTAL-ASSETS> 43,560,203
<CURRENT-LIABILITIES> 9,859,741
<BONDS> 49,729
0
0
<COMMON> 257,435
<OTHER-SE> 32,986,015
<TOTAL-LIABILITY-AND-EQUITY> 43,560,203
<SALES> 12,374,201
<TOTAL-REVENUES> 12,374,201
<CGS> 7,204,278
<TOTAL-COSTS> 7,204,278
<OTHER-EXPENSES> 5,000,168
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 5,484
<INCOME-PRETAX> 211,640
<INCOME-TAX> 53,780
<INCOME-CONTINUING> 157,860
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 157,860
<EPS-BASIC> .04
<EPS-DILUTED> .04
</TABLE>
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