<ARTICLE> 5 <LEGEND> This schedule contains summary financial information extracted from Form 10-K for the year ended December 31, 1997 and is qualified in its entirety by reference to such financial statements. </LEGEND> <RESTATED> <MULTIPLIER> 1,000 <PERIOD-TYPE> YEAR YEAR 3-MOS 3-MOS <FISCAL-YEAR-END> DEC-31-1996 DEC-31-1995 MAR-31-1996 JUN-30-1996 <PERIOD-START> JAN-01-1996 JAN-01-1995 JAN-01-1996 APR-01-1996 <PERIOD-END> DEC-31-1996 DEC-31-1995 MAR-31-1996 JUN-30-1996 <CASH> 5392 4729 2346 2160 <SECURITIES> 19028 26307 23119 20907 <RECEIVABLES> 29107 24729 20794 20752 <ALLOWANCES> 907 1177 878 884 <INVENTORY> 32322 28973 26226 28059 <CURRENT-ASSETS> 88527 87749 77490 76965 <PP&E> 86126 73087 66138 68369 <DEPRECIATION> 34332 30598 28596 29445 <TOTAL-ASSETS> 152176 142419 125027 125732 <CURRENT-LIABILITIES> 34521 34055 25961 24749 <BONDS> 15900 20919 12473 12441 <PREFERRED-MANDATORY> 0 0 0 0 <PREFERRED> 0 0 0 0 <COMMON> 142 141 129 129 <OTHER-SE> 97801 84132 81411 83699 <TOTAL-LIABILITY-AND-EQUITY> 152176 142419 125027 125732 <SALES> 155946 130783 33229 31176 <TOTAL-REVENUES> 155946 130783 33229 31176 <CGS> 92523 74670 19667 18228 <TOTAL-COSTS> 92523 74670 19667 18228 <OTHER-EXPENSES> 46016 40776 9206 9695 <LOSS-PROVISION> 0 0 0 0 <INTEREST-EXPENSE> 1594 1565 236 234 <INCOME-PRETAX> 19908 16833 4582 4078 <INCOME-TAX> 6441 4954 1420 1265 <INCOME-CONTINUING> 13467 11879 3162 2813 <DISCONTINUED> 0 0 0 0 <EXTRAORDINARY> 0 0 0 0 <CHANGES> 0 0 0 0 <NET-INCOME> 13467 11879 3162 2813 <EPS-PRIMARY> .95 .84 .26 .22 <EPS-DILUTED> .93 .83 .25 .21