<ARTICLE> 5
       
                                                  
<PERIOD-TYPE>                   9-MOS                   12-MOS
<FISCAL-YEAR-END>                          MAR-31-1997             MAR-31-1996
<PERIOD-START>                             APR-01-1996             APR-01-1995
<PERIOD-END>                               DEC-31-1996             MAR-31-1996
<CASH>                                         148,870                 172,112
<SECURITIES>                                         0                       0
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<DEPRECIATION>                               2,817,950               2,571,317
<TOTAL-ASSETS>                               3,279,498               2,612,039
<CURRENT-LIABILITIES>                          378,949                  32,584
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<PREFERRED>                                          0                       0
<COMMON>                                       711,614                 711,614
<OTHER-SE>                                   2,094,084               1,833,531
<TOTAL-LIABILITY-AND-EQUITY>                 3,279,498               2,612,039
<SALES>                                        888,866                 798,589
<TOTAL-REVENUES>                               899,290                 834,073
<CGS>                                          238,782                 272,892
<TOTAL-COSTS>                                  238,782                 272,892
<OTHER-EXPENSES>                               332,446                 348,876
<LOSS-PROVISION>                                     0                       0
<INTEREST-EXPENSE>                                   0                       0
<INCOME-PRETAX>                                328,062                 212,305
<INCOME-TAX>                                    67,509                  11,699
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<CHANGES>                                            0                       0
<NET-INCOME>                                   260,553                 200,606
<EPS-PRIMARY>                                     .183                    .149
<EPS-DILUTED>                                        0                       0