Number | Name | Date | Kind |
---|---|---|---|
3979549 | Wilkinson | Sep 1976 | |
4223067 | Lavens | Sep 1980 | |
4409290 | Wise | Oct 1983 | |
4564550 | Tschudin-Mahrer | Jan 1986 |
Number | Date | Country |
---|---|---|
2608257 | Sep 1976 | DEX |
2747737 | Apr 1978 | DEX |
3,407,995 | Sep 1985 | DEX |
1541482 | Mar 1979 | GBX |
Entry |
---|
Abstract of British 1,541,482, 3/1979, one page. |
Abstract of German DE 2,747,737, 4/1978, Harvestor, one page. |