© Frank H. Jump
J.-Donat Langelier (became Langelier-Valiquette in 1963). Began ca 1915 at Pointe-aux-Trembles, Que. Continued ca 1930 in Montreal. Not a manufacturer. See Pratte.
Pratte Piano Co (La Compagnie de pianos Pratte), Montreal; fl 1889-1926, then linked to J.-Donat Langelier – Piano Building- The Canadian Encyclopedia
