Number | Name | Date | Kind |
---|---|---|---|
2233292 | Lewin | Feb 1941 | |
3949584 | Pearson et al. | Apr 1976 | |
4025749 | Spurr et al. | May 1977 | |
4546632 | Van Den Kieboom et al. | Oct 1985 | |
5125252 | Ayres et al. | Jun 1992 | |
5151737 | Johnson et al. | Sep 1992 |
Number | Date | Country |
---|---|---|
1593731 | Sep 1990 | SUX |
Entry |
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Greenlee Product Catalog, Copyright 1990. |