Number | Date | Country | Kind |
---|---|---|---|
372/90 | Feb 1990 | ATX |
Number | Name | Date | Kind |
---|---|---|---|
2141569 | Tucker | Dec 1938 | |
3686133 | Hattori et al. | Aug 1972 | |
4256871 | Papalos et al. | Mar 1981 | |
4381369 | Holmquist | Apr 1983 | |
4725665 | Pieh et al. | Feb 1988 |
Number | Date | Country |
---|---|---|
3810114 | Oct 1989 | DEX |
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