Number | Date | Country | Kind |
---|---|---|---|
9119126 | Sep 1991 | GBX | |
9206580 | Mar 1992 | GBX |
Filing Document | Filing Date | Country | Kind | 102e Date | 371c Date |
---|---|---|---|---|---|
PCT/GB92/01630 | 9/7/1992 | 3/7/1994 | 3/7/1994 |
Publishing Document | Publishing Date | Country | Kind |
---|---|---|---|
WO93/05272 | 3/18/1993 |
Number | Name | Date | Kind |
---|---|---|---|
3284669 | Boyd | Nov 1966 | |
3340500 | Boyd et al. | Sep 1967 | |
3764880 | Rose | Oct 1973 | |
4157535 | Balkanli | Jun 1979 | |
4178579 | McGibbeny et al. | Dec 1979 | |
4523194 | Hyde | Jun 1985 | |
4581613 | Ward et al. | Apr 1986 | |
4620189 | Farque | Oct 1986 | |
4631535 | Butlin | Dec 1986 | |
4631536 | Ward et al. | Dec 1986 | |
4901070 | Vanderier | Feb 1990 |
Number | Date | Country |
---|---|---|
0097479 | Jan 1984 | EPX |
0112115 | Jun 1984 | EPX |
2367272 | May 1978 | FRX |
1589546 | May 1981 | GBX |
Entry |
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Gray, I & CS--Industrial and Process Control Magazine, vol. 61, No. 3, Mar. 1988, pp. 49-52. |