Number | Name | Date | Kind |
---|---|---|---|
RE28667 | Gores | Dec 1975 | |
D212848 | Westlund et al. | Dec 1968 | |
D273893 | Weitzman | May 1984 | |
3537179 | Parker et al. | Nov 1970 | |
4376628 | Aardse | Mar 1983 | |
4475888 | Gores et al. | Oct 1984 |
Number | Date | Country |
---|---|---|
521567 | Sep 1928 | DE2 |
2129818 | Dec 1972 | DEX |