|
| US3934514 | 8 May 1973 | 27 Ene 1976 | ICI Australia Limited | Firing devices and processes |
| US4324182 | 22 Ene 1979 | 13 Abr 1982 | Imperial Chemical Industries Limited | Apparatus and method for selectively activating plural electrical loads at predetermined relative times |
| US4409897 | 1 Oct 1981 | 18 Oct 1983 | Imperial Chemical Industries, Ltd. | Apparatus & method for selectively activating plural electrical loads at predetermined relative times |
| US4419933 | 1 Oct 1981 | 13 Dic 1983 | Imperial Chemical Industries Limited | Apparatus and method for selectively activating plural electrical loads at predetermined relative times |
| US4496010 | 2 Jul 1982 | 29 Ene 1985 | Schlumberger Technology Corporation | Single-wire selective performation system |
| US4527636 | 2 Jul 1982 | 9 Jul 1985 | Schlumberger Technology Corporation | Single-wire selective perforation system having firing safeguards |
| US5189246 | 25 Sep 1990 | 23 Feb 1993 | CSIR | Timing apparatus |
| US5282421 | 28 Jul 1992 | 1 Feb 1994 | CSIR | Timing apparatus |
| US5406890 | 30 Jul 1993 | 18 Abr 1995 | CSIR | Timing apparatus |
| US5714709 | 22 Abr 1996 | 3 Feb 1998 | Gebruder Junghans GmbH | Apparatus for detonating a plurality of objects |
| USRE32888 | 5 Feb 1988 | 14 Mar 1989 | Imperial Chemical Industries PLC | Apparatus and method for selectively activating plural electrical loads at predetermined relative times |
| USRE33004 | 25 Oct 1988 | 1 Ago 1989 | Imperial Chemical Industries PLC | Apparatus and method for selectively activating plural electrical loads at predetermined relative times |
