F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
F23D14/04—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
Procede d'assemblage de deux elements profiles transversaux l'un a l'autre et noeud d'assemblage realise par la mise en oeuvre du procede
Dorothée Schneider, Trade Unions and Community. The German Working Class in New York City, 1870-1900, Urbana-Chicago, University of Illinois Press, 1994, 273 p.