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F23Q9/02—Pilot flame igniters without interlock with main fuel supply
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FR351193D1905-02-011905-02-01Appareil automatique commandant l'allumage et l'extinction de l'éclairage au gaz à des moments déterminés à l'avance
ExpiredFR351193A
(fr)
Appareil automatique pour la commande de robinets à toute distance et notamment l'allumage et l'extinction du gaz d'éclairage ou de chauffage
Appareil pour produire automatiquement l'allumage et l'extinction des becs de gaz des candélabres et autres appareils d'éclairage, à des moments déterminés d'avance