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F22B13/00—Steam boilers of fire-box type, i.e. boilers where both combustion chambers and subsequent flues or fire tubes are arranged within the boiler body
F22B13/14—Component parts thereof; Accessories therefor
F22B13/145—Firebox thermosiphons
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FR821201D1937-04-281937-04-28Perfectionnements aux chaudières de locomotives
ExpiredFR821201A
(fr)