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4061228 | Johnson | Dec 1977 | |
4160504 | Kudlich et al. | Jul 1979 | |
4248346 | Johnson | Feb 1981 | |
4319679 | Gustafson | Mar 1982 | |
4450960 | Johnson | May 1984 | |
4471716 | Milliren | Sep 1984 | |
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4493418 | Johnson | Jan 1985 | |
4520925 | Johnson | Jun 1985 | |
4555024 | Voss et al. | Nov 1985 | |
4557382 | Johnson | Dec 1985 | |
4582219 | Mortensen et al. | Apr 1986 | |
4588086 | Coe | May 1986 | |
4653636 | Armstrong | Mar 1987 | |
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4684021 | Niebling et al. | Aug 1987 | |
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4709834 | Mortensen et al. | Dec 1987 | |
4718549 | Rissotti et al. | Jan 1988 | |
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4721207 | Kikuchi | Jan 1988 | |
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4793488 | Mortensen | Dec 1988 | |
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4827110 | Rossi et al. | May 1989 | |
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