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F22G3/00—Steam superheaters characterised by constructional features; Details of component parts thereof
F22G3/009—Connecting or sealing of superheater or reheater tubes with collectors or distributors
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FR721160D1931-08-081931-08-08Dispositif de joint ou d'assemblage entre deux tubes bout à bout, et application spéciale aux surchauffeurs de vapeur
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Perfectionnements à la télévision, notamment à la télécinématographie par télévision, aux procédés et appareils utilisés dans ces techniques ou techniques similaires