Number | Name | Date | Kind |
---|---|---|---|
4038337 | Manara et al. | Jul 1977 | |
4377393 | Schleppinghoff | Mar 1983 | |
4400571 | Robinson | Aug 1983 | |
4554386 | Groeneveld et al. | Nov 1985 | |
4581474 | Hutson et al. | Apr 1986 | |
4600503 | Angevine et al. | Jul 1986 | |
4650779 | Goldstein | Mar 1987 | |
4714787 | Bell et al. | Dec 1987 | |
4731490 | Coughenour et al. | Mar 1988 |
Number | Date | Country |
---|---|---|
2071071 | Sep 1981 | GBX |
Entry |
---|
U.S. appln. Ser. No. 687,414, filed 12/28/84. |