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ERITH S ENGINEERING Co LT
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ERITH S ENGINEERING Co LT
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Publication of FR717101ApublicationCriticalpatent/FR717101A/fr
F23H1/02—Grates with solid bars having provision for air supply or air preheating, e.g. air-supply or blast fittings which form a part of the grate structure or serve as supports
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FR717101D1931-05-151931-05-15Perfectionnements aux grilles à tuyères pour foyers
ExpiredFR717101A
(fr)