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| Patents for F23Q 21 - Devices for effecting ignition from a remote location (213) |
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| 10/06/1999 | CN1230659A Plasma ignitor for direct ignition of power station duff boiler | | 06/30/1999 | CN2326862Y Firing gun for plasma ignition device | | 06/30/1999 | CN2326861Y Plasma ignition device for directly igniting coal-ash boiler of power station | | 02/17/1999 | CN2308012Y Electric propeller | | 10/14/1986 | CA1212618A1 Flare stack ignitor | | 04/01/1986 | US4579522 Flare stack ignitor | | 05/22/1984 | US4449920 Device for igniting a torch | | 07/19/1983 | USRE31316 Elongated igniting device | | 06/14/1983 | CA1147976A1 Elongated igniting device | | 01/12/1983 | EP0069654A1 Apparatus for lighting a flare stack | | 02/16/1982 | US4315731 Elongated igniting device | | 02/03/1981 | US4248585 Flare ignition apparatus | | 09/16/1980 | US4222734 Remote lighting device |
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