Number | Date | Country | Kind |
---|---|---|---|
9714102 | Jul 1997 | GBX |
Number | Name | Date | Kind |
---|---|---|---|
3301848 | Halleck | Jan 1967 | |
5536493 | Dubief | Jul 1996 | |
5574023 | Shibata et al. | Nov 1996 | |
5814341 | Frankhauser et al. | Sep 1998 |
Number | Date | Country |
---|---|---|
0453366 | Oct 1991 | EPX |
2050825 | Jan 1981 | GBX |
9404163 | Mar 1994 | WOX |
Entry |
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Derwent Abstr. 91-256625. |