Number | Name | Date | Kind |
---|---|---|---|
4247508 | Housholder | Jan 1981 | |
4863538 | Deckard | Sep 1989 | |
4944817 | Bourell et al. | Jul 1990 | |
5017753 | Deckard | May 1991 | |
5076869 | Bourell et al. | Dec 1991 | |
5156697 | Bourell et al. | Oct 1992 | |
5284695 | Barlow et al. | Feb 1994 |
Number | Date | Country |
---|---|---|
0 416 852 A2 | Mar 1991 | EPX |
43 05 201 C1 | Apr 1994 | DEX |
Entry |
---|
Hackh's Chemical Dictionary, p. 674, 1969. |