Number | Date | Country | Kind |
---|---|---|---|
9623949 | Nov 1996 | GBX |
Number | Name | Date | Kind |
---|---|---|---|
RE30881 | Huggett et al. | Mar 1982 | |
3670589 | Carter | Jun 1972 | |
3728914 | Guangorena et al. | Apr 1973 | |
3962935 | Hutton et al. | Jun 1976 | |
4003274 | Hirsiefer | Jan 1977 | |
4725043 | Atfield et al. | Feb 1988 | |
4974814 | Cundy | Dec 1990 | |
5368279 | Ottemann et al. | Nov 1994 | |
5370366 | Ottemann | Dec 1994 |
Entry |
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WO 94114646, Resch et al, Oct. 1991. |