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Facteurs de pianos en France
WIART
à Paris (°1850)
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"1706. Jean Mechim, of White Horse Road, Croydon, in the County of Surrey, for an invention for Improvements in pianos and organs. A communication to him from abroad by Frederic Stanislas Wiart, of Chateauroux, Department of Indre, in the Empire of France. Provisional protection only." Chronological index of patents applied for and patents granted, 1861, p. 72
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