Patent Grant
D409946
| Number | Name | Date | Kind |
|---|---|---|---|
| D368234 | Dickinson et al. | Mar 1996 | |
| D369760 | Sanderson | May 1996 | |
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| 3965616 | Ridgeway | Jun 1976 | |
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| 4047329 | Holt | Sep 1977 | |
| 4059920 | Worrell | Nov 1977 | |
| 4092804 | Morris et al. | Jun 1978 | |
| 4167080 | Mickelson | Sep 1979 | |
| 4224764 | Dziewulski et al. | Sep 1980 | |
| 4299055 | Dziewulski et al. | Nov 1981 | |
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| 4597221 | Adair et al. | Jul 1986 | |
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| 5309670 | Bates | May 1994 | |
| 5481826 | Dickinson et al. | Jan 1996 | |
| 5638638 | Moskowitz | Jun 1997 |
