1989
| Sales: | $501M |
| R and D: | $72M |
| Patents: | 44 |
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1988
| Sales: | $362M |
| R and D: | $43M |
| Patents: | 26 |
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1987
| Sales: | $174M |
| R and D: | $31M |
| Patents: | 8 |
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1986
| Sales: | $149M |
| R and D: | $24M |
| Patents: | 20 |
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1985
| Sales: | $174M |
| R and D: | $31M |
| Patents: | 5 |
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1984
| Sales: | $168M |
| R and D: | $31M |
| Patents: | 3 |
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1983
| Sales: | $105M |
| R and D: | $16M |
| Patents: | 9 |
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1982
| Sales: | $88M |
| R and D: | $14M |
| Patents: | 2 |
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1981
| Sales: | $77M |
| R and D: | $11M |
| Patents: | 4 |
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1980
| Sales: | $69M |
| R and D: | $8M |
| Patents: | 3 |
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