Number | Date | Country | Kind |
---|---|---|---|
9818824 | Aug 1998 | GBX |
Number | Name | Date | Kind |
---|---|---|---|
5250111 | Langley et al. | Oct 1993 | |
5296034 | Dietz et al. | Mar 1994 |
Number | Date | Country |
---|---|---|
0 398 620 | Nov 1990 | EPX |
0 519 395 | Dec 1992 | EPX |
0 629 668 | Dec 1994 | EPX |
1 502 884 | Mar 1978 | GBX |
Entry |
---|
6001 Chemical Abstracts, vol. 114,(1991) 20-05 No. 20 No. 20 No. 114:187659j of CS-263 108 (no month). |
Chem. Abst. 79:32697 of DE 2,256,544 (May 1973). |