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HANZER FRERES SOC
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HANZER FRERES SOC
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F23Q9/02—Pilot flame igniters without interlock with main fuel supply
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FR407778D1909-08-311909-08-31Dispositif pour produire automatiquement l'allumage et l'extinction des becs de gaz à des moments déterminés d'avance
ExpiredFR407778A
(fr)