Number | Name | Date | Kind |
---|---|---|---|
4367827 | Keller et al. | Jan 1983 | |
4469149 | Walkey et al. | Sep 1984 | |
4490798 | Franks et al. | Dec 1984 | |
4881581 | Hollerback | Nov 1989 | |
4934419 | Lamont et al. | Jun 1990 | |
5156198 | Hall | Oct 1992 | |
5359522 | Ryan | Oct 1994 | |
5605182 | Oberrecht et al. | Feb 1997 | |
5628351 | Ramsey, Jr. et al. | May 1997 | |
5727608 | Nusbaumer et al. | Mar 1998 | |
5906228 | Keller | May 1999 | |
5913180 | Ryan | Jun 1999 |
Entry |
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Roseman Engineering Ltd. Web Pages, Jun. 22, 1998. |